node: updatemain

4 files changed, 0 insertions, 1279 deletions

diff --git a/node_modules/clean-css/lib/optimizer/configuration/break-up.js b/node_modules/clean-css/lib/optimizer/configuration/break-up.js
deleted file mode 100644
index da069bf2..00000000
--- a/node_modules/clean-css/lib/optimizer/configuration/break-up.js
+++ /dev/null
@@ -1,656 +0,0 @@
-var InvalidPropertyError = require('../invalid-property-error');
-
-var wrapSingle = require('../wrap-for-optimizing').single;
-
-var Token = require('../../tokenizer/token');
-var Marker = require('../../tokenizer/marker');
-
-var formatPosition = require('../../utils/format-position');
-
-function _anyIsInherit(values) {
-  var i, l;
-
-  for (i = 0, l = values.length; i < l; i++) {
-    if (values[i][1] == 'inherit') {
-      return true;
-    }
-  }
-
-  return false;
-}
-
-function _colorFilter(validator) {
-  return function(value) {
-    return value[1] == 'invert' || validator.isColor(value[1]) || validator.isPrefixed(value[1]);
-  };
-}
-
-function _styleFilter(validator) {
-  return function(value) {
-    return value[1] != 'inherit' && validator.isStyleKeyword(value[1]) && !validator.isColorFunction(value[1]);
-  };
-}
-
-function _wrapDefault(name, property, configuration) {
-  var descriptor = configuration[name];
-  if (descriptor.doubleValues && descriptor.defaultValue.length == 2) {
-    return wrapSingle([
-      Token.PROPERTY,
-      [Token.PROPERTY_NAME, name],
-      [Token.PROPERTY_VALUE, descriptor.defaultValue[0]],
-      [Token.PROPERTY_VALUE, descriptor.defaultValue[1]]
-    ]);
-  } if (descriptor.doubleValues && descriptor.defaultValue.length == 1) {
-    return wrapSingle([
-      Token.PROPERTY,
-      [Token.PROPERTY_NAME, name],
-      [Token.PROPERTY_VALUE, descriptor.defaultValue[0]]
-    ]);
-  }
-  return wrapSingle([
-    Token.PROPERTY,
-    [Token.PROPERTY_NAME, name],
-    [Token.PROPERTY_VALUE, descriptor.defaultValue]
-  ]);
-}
-
-function _widthFilter(validator) {
-  return function(value) {
-    return value[1] != 'inherit'
-      && (validator.isWidth(value[1]) || validator.isUnit(value[1]) || validator.isDynamicUnit(value[1]))
-      && !validator.isStyleKeyword(value[1])
-      && !validator.isColorFunction(value[1]);
-  };
-}
-
-function animation(property, configuration, validator) {
-  var duration = _wrapDefault(property.name + '-duration', property, configuration);
-  var timing = _wrapDefault(property.name + '-timing-function', property, configuration);
-  var delay = _wrapDefault(property.name + '-delay', property, configuration);
-  var iteration = _wrapDefault(property.name + '-iteration-count', property, configuration);
-  var direction = _wrapDefault(property.name + '-direction', property, configuration);
-  var fill = _wrapDefault(property.name + '-fill-mode', property, configuration);
-  var play = _wrapDefault(property.name + '-play-state', property, configuration);
-  var name = _wrapDefault(property.name + '-name', property, configuration);
-  var components = [duration, timing, delay, iteration, direction, fill, play, name];
-  var values = property.value;
-  var value;
-  var durationSet = false;
-  var timingSet = false;
-  var delaySet = false;
-  var iterationSet = false;
-  var directionSet = false;
-  var fillSet = false;
-  var playSet = false;
-  var nameSet = false;
-  var i;
-  var l;
-
-  if (property.value.length == 1 && property.value[0][1] == 'inherit') {
-    // eslint-disable-next-line max-len
-    duration.value = timing.value = delay.value = iteration.value = direction.value = fill.value = play.value = name.value = property.value;
-    return components;
-  }
-
-  if (values.length > 1 && _anyIsInherit(values)) {
-    throw new InvalidPropertyError('Invalid animation values at ' + formatPosition(values[0][2][0]) + '. Ignoring.');
-  }
-
-  for (i = 0, l = values.length; i < l; i++) {
-    value = values[i];
-
-    if (validator.isTime(value[1]) && !durationSet) {
-      duration.value = [value];
-      durationSet = true;
-    } else if (validator.isTime(value[1]) && !delaySet) {
-      delay.value = [value];
-      delaySet = true;
-    } else if ((validator.isGlobal(value[1]) || validator.isTimingFunction(value[1])) && !timingSet) {
-      timing.value = [value];
-      timingSet = true;
-    } else if ((validator.isAnimationIterationCountKeyword(value[1])
-      || validator.isPositiveNumber(value[1]))
-      && !iterationSet) {
-      iteration.value = [value];
-      iterationSet = true;
-    } else if (validator.isAnimationDirectionKeyword(value[1]) && !directionSet) {
-      direction.value = [value];
-      directionSet = true;
-    } else if (validator.isAnimationFillModeKeyword(value[1]) && !fillSet) {
-      fill.value = [value];
-      fillSet = true;
-    } else if (validator.isAnimationPlayStateKeyword(value[1]) && !playSet) {
-      play.value = [value];
-      playSet = true;
-    } else if ((validator.isAnimationNameKeyword(value[1]) || validator.isIdentifier(value[1])) && !nameSet) {
-      name.value = [value];
-      nameSet = true;
-    } else {
-      throw new InvalidPropertyError('Invalid animation value at ' + formatPosition(value[2][0]) + '. Ignoring.');
-    }
-  }
-
-  return components;
-}
-
-function background(property, configuration, validator) {
-  var image = _wrapDefault('background-image', property, configuration);
-  var position = _wrapDefault('background-position', property, configuration);
-  var size = _wrapDefault('background-size', property, configuration);
-  var repeat = _wrapDefault('background-repeat', property, configuration);
-  var attachment = _wrapDefault('background-attachment', property, configuration);
-  var origin = _wrapDefault('background-origin', property, configuration);
-  var clip = _wrapDefault('background-clip', property, configuration);
-  var color = _wrapDefault('background-color', property, configuration);
-  var components = [image, position, size, repeat, attachment, origin, clip, color];
-  var values = property.value;
-
-  var positionSet = false;
-  var clipSet = false;
-  var originSet = false;
-  var repeatSet = false;
-
-  var anyValueSet = false;
-
-  if (property.value.length == 1 && property.value[0][1] == 'inherit') {
-    // NOTE: 'inherit' is not a valid value for background-attachment
-    color.value = image.value = repeat.value = position.value = size.value = origin.value = clip.value = property.value;
-    return components;
-  }
-
-  if (property.value.length == 1 && property.value[0][1] == '0 0') {
-    return components;
-  }
-
-  for (var i = values.length - 1; i >= 0; i--) {
-    var value = values[i];
-
-    if (validator.isBackgroundAttachmentKeyword(value[1])) {
-      attachment.value = [value];
-      anyValueSet = true;
-    } else if (validator.isBackgroundClipKeyword(value[1]) || validator.isBackgroundOriginKeyword(value[1])) {
-      if (clipSet) {
-        origin.value = [value];
-        originSet = true;
-      } else {
-        clip.value = [value];
-        clipSet = true;
-      }
-      anyValueSet = true;
-    } else if (validator.isBackgroundRepeatKeyword(value[1])) {
-      if (repeatSet) {
-        repeat.value.unshift(value);
-      } else {
-        repeat.value = [value];
-        repeatSet = true;
-      }
-      anyValueSet = true;
-    } else if (validator.isBackgroundPositionKeyword(value[1])
-    || validator.isBackgroundSizeKeyword(value[1])
-    || validator.isUnit(value[1])
-    || validator.isDynamicUnit(value[1])) {
-      if (i > 0) {
-        var previousValue = values[i - 1];
-
-        if (previousValue[1] == Marker.FORWARD_SLASH) {
-          size.value = [value];
-        } else if (i > 1 && values[i - 2][1] == Marker.FORWARD_SLASH) {
-          size.value = [previousValue, value];
-          i -= 2;
-        } else {
-          if (!positionSet) { position.value = []; }
-
-          position.value.unshift(value);
-          positionSet = true;
-        }
-      } else {
-        if (!positionSet) { position.value = []; }
-
-        position.value.unshift(value);
-        positionSet = true;
-      }
-      anyValueSet = true;
-    } else if ((color.value[0][1] == configuration[color.name].defaultValue || color.value[0][1] == 'none') && (validator.isColor(value[1]) || validator.isPrefixed(value[1]))) {
-      color.value = [value];
-      anyValueSet = true;
-    } else if (validator.isUrl(value[1]) || validator.isFunction(value[1])) {
-      image.value = [value];
-      anyValueSet = true;
-    }
-  }
-
-  if (clipSet && !originSet) { origin.value = clip.value.slice(0); }
-
-  if (!anyValueSet) {
-    throw new InvalidPropertyError('Invalid background value at ' + formatPosition(values[0][2][0]) + '. Ignoring.');
-  }
-
-  return components;
-}
-
-function borderRadius(property, configuration) {
-  var values = property.value;
-  var splitAt = -1;
-
-  for (var i = 0, l = values.length; i < l; i++) {
-    if (values[i][1] == Marker.FORWARD_SLASH) {
-      splitAt = i;
-      break;
-    }
-  }
-
-  if (splitAt === 0 || splitAt === values.length - 1) {
-    throw new InvalidPropertyError('Invalid border-radius value at ' + formatPosition(values[0][2][0]) + '. Ignoring.');
-  }
-
-  var target = _wrapDefault(property.name, property, configuration);
-  target.value = splitAt > -1
-    ? values.slice(0, splitAt)
-    : values.slice(0);
-  target.components = fourValues(target, configuration);
-
-  var remainder = _wrapDefault(property.name, property, configuration);
-  remainder.value = splitAt > -1
-    ? values.slice(splitAt + 1)
-    : values.slice(0);
-  remainder.components = fourValues(remainder, configuration);
-
-  for (var j = 0; j < 4; j++) {
-    target.components[j].multiplex = true;
-    target.components[j].value = target.components[j].value.concat(remainder.components[j].value);
-  }
-
-  return target.components;
-}
-
-function font(property, configuration, validator) {
-  var style = _wrapDefault('font-style', property, configuration);
-  var variant = _wrapDefault('font-variant', property, configuration);
-  var weight = _wrapDefault('font-weight', property, configuration);
-  var stretch = _wrapDefault('font-stretch', property, configuration);
-  var size = _wrapDefault('font-size', property, configuration);
-  var height = _wrapDefault('line-height', property, configuration);
-  var family = _wrapDefault('font-family', property, configuration);
-  var components = [style, variant, weight, stretch, size, height, family];
-  var values = property.value;
-  var fuzzyMatched = 4; // style, variant, weight, and stretch
-  var index = 0;
-  var isStretchSet = false;
-  var isStretchValid;
-  var isStyleSet = false;
-  var isStyleValid;
-  var isVariantSet = false;
-  var isVariantValid;
-  var isWeightSet = false;
-  var isWeightValid;
-  var appendableFamilyName = false;
-
-  if (!values[index]) {
-    throw new InvalidPropertyError('Missing font values at ' + formatPosition(property.all[property.position][1][2][0]) + '. Ignoring.');
-  }
-
-  if (values.length == 1 && values[0][1] == 'inherit') {
-    style.value = variant.value = weight.value = stretch.value = size.value = height.value = family.value = values;
-    return components;
-  }
-
-  if (values.length == 1
-    && (validator.isFontKeyword(values[0][1])
-    || validator.isGlobal(values[0][1])
-    || validator.isPrefixed(values[0][1]))
-  ) {
-    values[0][1] = Marker.INTERNAL + values[0][1];
-    style.value = variant.value = weight.value = stretch.value = size.value = height.value = family.value = values;
-    return components;
-  }
-
-  if (values.length < 2 || !_anyIsFontSize(values, validator) || !_anyIsFontFamily(values, validator)) {
-    throw new InvalidPropertyError('Invalid font values at ' + formatPosition(property.all[property.position][1][2][0]) + '. Ignoring.');
-  }
-
-  if (values.length > 1 && _anyIsInherit(values)) {
-    throw new InvalidPropertyError('Invalid font values at ' + formatPosition(values[0][2][0]) + '. Ignoring.');
-  }
-
-  // fuzzy match style, variant, weight, and stretch on first elements
-  while (index < fuzzyMatched) {
-    isStretchValid = validator.isFontStretchKeyword(values[index][1]) || validator.isGlobal(values[index][1]);
-    isStyleValid = validator.isFontStyleKeyword(values[index][1]) || validator.isGlobal(values[index][1]);
-    isVariantValid = validator.isFontVariantKeyword(values[index][1]) || validator.isGlobal(values[index][1]);
-    isWeightValid = validator.isFontWeightKeyword(values[index][1]) || validator.isGlobal(values[index][1]);
-
-    if (isStyleValid && !isStyleSet) {
-      style.value = [values[index]];
-      isStyleSet = true;
-    } else if (isVariantValid && !isVariantSet) {
-      variant.value = [values[index]];
-      isVariantSet = true;
-    } else if (isWeightValid && !isWeightSet) {
-      weight.value = [values[index]];
-      isWeightSet = true;
-    } else if (isStretchValid && !isStretchSet) {
-      stretch.value = [values[index]];
-      isStretchSet = true;
-    } else if (isStyleValid
-      && isStyleSet
-      || isVariantValid
-      && isVariantSet
-      || isWeightValid
-      && isWeightSet
-      || isStretchValid
-      && isStretchSet) {
-      throw new InvalidPropertyError('Invalid font style / variant / weight / stretch value at ' + formatPosition(values[0][2][0]) + '. Ignoring.');
-    } else {
-      break;
-    }
-
-    index++;
-  }
-
-  // now comes font-size ...
-  if (validator.isFontSizeKeyword(values[index][1])
-    || validator.isUnit(values[index][1])
-    && !validator.isDynamicUnit(values[index][1])) {
-    size.value = [values[index]];
-    index++;
-  } else {
-    throw new InvalidPropertyError('Missing font size at ' + formatPosition(values[0][2][0]) + '. Ignoring.');
-  }
-
-  if (!values[index]) {
-    throw new InvalidPropertyError('Missing font family at ' + formatPosition(values[0][2][0]) + '. Ignoring.');
-  }
-
-  // ... and perhaps line-height
-  if (values[index]
-    && values[index][1] == Marker.FORWARD_SLASH
-    && values[index + 1]
-    && (validator.isLineHeightKeyword(values[index + 1][1])
-    || validator.isUnit(values[index + 1][1])
-    || validator.isNumber(values[index + 1][1]))) {
-    height.value = [values[index + 1]];
-    index++;
-    index++;
-  }
-
-  // ... and whatever comes next is font-family
-  family.value = [];
-
-  while (values[index]) {
-    if (values[index][1] == Marker.COMMA) {
-      appendableFamilyName = false;
-    } else {
-      if (appendableFamilyName) {
-        family.value[family.value.length - 1][1] += Marker.SPACE + values[index][1];
-      } else {
-        family.value.push(values[index]);
-      }
-
-      appendableFamilyName = true;
-    }
-
-    index++;
-  }
-
-  if (family.value.length === 0) {
-    throw new InvalidPropertyError('Missing font family at ' + formatPosition(values[0][2][0]) + '. Ignoring.');
-  }
-
-  return components;
-}
-
-function _anyIsFontSize(values, validator) {
-  var value;
-  var i, l;
-
-  for (i = 0, l = values.length; i < l; i++) {
-    value = values[i];
-
-    if (validator.isFontSizeKeyword(value[1])
-      || validator.isUnit(value[1])
-      && !validator.isDynamicUnit(value[1])
-      || validator.isFunction(value[1])) {
-      return true;
-    }
-  }
-
-  return false;
-}
-
-function _anyIsFontFamily(values, validator) {
-  var value;
-  var i, l;
-
-  for (i = 0, l = values.length; i < l; i++) {
-    value = values[i];
-
-    if (validator.isIdentifier(value[1]) || validator.isQuotedText(value[1])) {
-      return true;
-    }
-  }
-
-  return false;
-}
-
-function fourValues(property, configuration) {
-  var componentNames = configuration[property.name].components;
-  var components = [];
-  var value = property.value;
-
-  if (value.length < 1) { return []; }
-
-  if (value.length < 2) { value[1] = value[0].slice(0); }
-  if (value.length < 3) { value[2] = value[0].slice(0); }
-  if (value.length < 4) { value[3] = value[1].slice(0); }
-
-  for (var i = componentNames.length - 1; i >= 0; i--) {
-    var component = wrapSingle([
-      Token.PROPERTY,
-      [Token.PROPERTY_NAME, componentNames[i]]
-    ]);
-    component.value = [value[i]];
-    components.unshift(component);
-  }
-
-  return components;
-}
-
-function multiplex(splitWith) {
-  return function(property, configuration, validator) {
-    var splitsAt = [];
-    var values = property.value;
-    var i, j, l, m;
-
-    // find split commas
-    for (i = 0, l = values.length; i < l; i++) {
-      if (values[i][1] == ',') { splitsAt.push(i); }
-    }
-
-    if (splitsAt.length === 0) { return splitWith(property, configuration, validator); }
-
-    var splitComponents = [];
-
-    // split over commas, and into components
-    for (i = 0, l = splitsAt.length; i <= l; i++) {
-      var from = i === 0 ? 0 : splitsAt[i - 1] + 1;
-      var to = i < l ? splitsAt[i] : values.length;
-
-      var _property = _wrapDefault(property.name, property, configuration);
-      _property.value = values.slice(from, to);
-
-      if (_property.value.length > 0) {
-        splitComponents.push(splitWith(_property, configuration, validator));
-      }
-    }
-
-    var components = splitComponents[0];
-
-    // group component values from each split
-    for (i = 0, l = components.length; i < l; i++) {
-      components[i].multiplex = true;
-
-      for (j = 1, m = splitComponents.length; j < m; j++) {
-        components[i].value.push([Token.PROPERTY_VALUE, Marker.COMMA]);
-        Array.prototype.push.apply(components[i].value, splitComponents[j][i].value);
-      }
-    }
-
-    return components;
-  };
-}
-
-function listStyle(property, configuration, validator) {
-  var type = _wrapDefault('list-style-type', property, configuration);
-  var position = _wrapDefault('list-style-position', property, configuration);
-  var image = _wrapDefault('list-style-image', property, configuration);
-  var components = [type, position, image];
-
-  if (property.value.length == 1 && property.value[0][1] == 'inherit') {
-    type.value = position.value = image.value = [property.value[0]];
-    return components;
-  }
-
-  var values = property.value.slice(0);
-  var total = values.length;
-  var index = 0;
-
-  // `image` first...
-  for (index = 0, total = values.length; index < total; index++) {
-    if (validator.isUrl(values[index][1]) || values[index][1] == '0') {
-      image.value = [values[index]];
-      values.splice(index, 1);
-      break;
-    }
-  }
-
-  // ... then `position`
-  for (index = 0, total = values.length; index < total; index++) {
-    if (validator.isListStylePositionKeyword(values[index][1])) {
-      position.value = [values[index]];
-      values.splice(index, 1);
-      break;
-    }
-  }
-
-  // ... and what's left is a `type`
-  if (values.length > 0 && (validator.isListStyleTypeKeyword(values[0][1]) || validator.isIdentifier(values[0][1]))) {
-    type.value = [values[0]];
-  }
-
-  return components;
-}
-
-function transition(property, configuration, validator) {
-  var prop = _wrapDefault(property.name + '-property', property, configuration);
-  var duration = _wrapDefault(property.name + '-duration', property, configuration);
-  var timing = _wrapDefault(property.name + '-timing-function', property, configuration);
-  var delay = _wrapDefault(property.name + '-delay', property, configuration);
-  var components = [prop, duration, timing, delay];
-  var values = property.value;
-  var value;
-  var durationSet = false;
-  var delaySet = false;
-  var propSet = false;
-  var timingSet = false;
-  var i;
-  var l;
-
-  if (property.value.length == 1 && property.value[0][1] == 'inherit') {
-    prop.value = duration.value = timing.value = delay.value = property.value;
-    return components;
-  }
-
-  if (values.length > 1 && _anyIsInherit(values)) {
-    throw new InvalidPropertyError('Invalid animation values at ' + formatPosition(values[0][2][0]) + '. Ignoring.');
-  }
-
-  for (i = 0, l = values.length; i < l; i++) {
-    value = values[i];
-
-    if (validator.isTime(value[1]) && !durationSet) {
-      duration.value = [value];
-      durationSet = true;
-    } else if (validator.isTime(value[1]) && !delaySet) {
-      delay.value = [value];
-      delaySet = true;
-    } else if ((validator.isGlobal(value[1]) || validator.isTimingFunction(value[1])) && !timingSet) {
-      timing.value = [value];
-      timingSet = true;
-    } else if (validator.isIdentifier(value[1]) && !propSet) {
-      prop.value = [value];
-      propSet = true;
-    } else {
-      throw new InvalidPropertyError('Invalid animation value at ' + formatPosition(value[2][0]) + '. Ignoring.');
-    }
-  }
-
-  return components;
-}
-
-function widthStyleColor(property, configuration, validator) {
-  var descriptor = configuration[property.name];
-  var components = [
-    _wrapDefault(descriptor.components[0], property, configuration),
-    _wrapDefault(descriptor.components[1], property, configuration),
-    _wrapDefault(descriptor.components[2], property, configuration)
-  ];
-  var color, style, width;
-
-  for (var i = 0; i < 3; i++) {
-    var component = components[i];
-
-    if (component.name.indexOf('color') > 0) { color = component; } else if (component.name.indexOf('style') > 0) { style = component; } else { width = component; }
-  }
-
-  if ((property.value.length == 1 && property.value[0][1] == 'inherit')
-      || (property.value.length == 3 && property.value[0][1] == 'inherit' && property.value[1][1] == 'inherit' && property.value[2][1] == 'inherit')) {
-    color.value = style.value = width.value = [property.value[0]];
-    return components;
-  }
-
-  var values = property.value.slice(0);
-  var match, matches;
-
-  // NOTE: usually users don't follow the required order of parts in this shorthand,
-  // so we'll try to parse it caring as little about order as possible
-
-  if (values.length > 0) {
-    matches = values.filter(_widthFilter(validator));
-    match = matches.length > 1 && (matches[0][1] == 'none' || matches[0][1] == 'auto') ? matches[1] : matches[0];
-    if (match) {
-      width.value = [match];
-      values.splice(values.indexOf(match), 1);
-    }
-  }
-
-  if (values.length > 0) {
-    match = values.filter(_styleFilter(validator))[0];
-    if (match) {
-      style.value = [match];
-      values.splice(values.indexOf(match), 1);
-    }
-  }
-
-  if (values.length > 0) {
-    match = values.filter(_colorFilter(validator))[0];
-    if (match) {
-      color.value = [match];
-      values.splice(values.indexOf(match), 1);
-    }
-  }
-
-  return components;
-}
-
-module.exports = {
-  animation: animation,
-  background: background,
-  border: widthStyleColor,
-  borderRadius: borderRadius,
-  font: font,
-  fourValues: fourValues,
-  listStyle: listStyle,
-  multiplex: multiplex,
-  outline: widthStyleColor,
-  transition: transition
-};
diff --git a/node_modules/clean-css/lib/optimizer/configuration/can-override.js b/node_modules/clean-css/lib/optimizer/configuration/can-override.js
deleted file mode 100644
index d5cb3fa0..00000000
--- a/node_modules/clean-css/lib/optimizer/configuration/can-override.js
+++ /dev/null
@@ -1,314 +0,0 @@
-var understandable = require('./properties/understandable');
-
-function animationIterationCount(validator, value1, value2) {
-  if (!understandable(validator, value1, value2, 0, true)
-    && !(validator.isAnimationIterationCountKeyword(value2) || validator.isPositiveNumber(value2))) {
-    return false;
-  } if (validator.isVariable(value1) && validator.isVariable(value2)) {
-    return true;
-  }
-
-  return validator.isAnimationIterationCountKeyword(value2) || validator.isPositiveNumber(value2);
-}
-
-function animationName(validator, value1, value2) {
-  if (!understandable(validator, value1, value2, 0, true)
-    && !(validator.isAnimationNameKeyword(value2) || validator.isIdentifier(value2))) {
-    return false;
-  } if (validator.isVariable(value1) && validator.isVariable(value2)) {
-    return true;
-  }
-
-  return validator.isAnimationNameKeyword(value2) || validator.isIdentifier(value2);
-}
-
-function areSameFunction(validator, value1, value2) {
-  if (!validator.isFunction(value1) || !validator.isFunction(value2)) {
-    return false;
-  }
-
-  var function1Name = value1.substring(0, value1.indexOf('('));
-  var function2Name = value2.substring(0, value2.indexOf('('));
-
-  var function1Value = value1.substring(function1Name.length + 1, value1.length - 1);
-  var function2Value = value2.substring(function2Name.length + 1, value2.length - 1);
-
-  if (validator.isFunction(function1Value) || validator.isFunction(function2Value)) {
-    return function1Name === function2Name && areSameFunction(validator, function1Value, function2Value);
-  }
-  return function1Name === function2Name;
-}
-
-function backgroundPosition(validator, value1, value2) {
-  if (!understandable(validator, value1, value2, 0, true)
-    && !(validator.isBackgroundPositionKeyword(value2) || validator.isGlobal(value2))) {
-    return false;
-  } if (validator.isVariable(value1) && validator.isVariable(value2)) {
-    return true;
-  } if (validator.isBackgroundPositionKeyword(value2) || validator.isGlobal(value2)) {
-    return true;
-  }
-
-  return unit(validator, value1, value2);
-}
-
-function backgroundSize(validator, value1, value2) {
-  if (!understandable(validator, value1, value2, 0, true)
-    && !(validator.isBackgroundSizeKeyword(value2) || validator.isGlobal(value2))) {
-    return false;
-  } if (validator.isVariable(value1) && validator.isVariable(value2)) {
-    return true;
-  } if (validator.isBackgroundSizeKeyword(value2) || validator.isGlobal(value2)) {
-    return true;
-  }
-
-  return unit(validator, value1, value2);
-}
-
-function color(validator, value1, value2) {
-  if (!understandable(validator, value1, value2, 0, true) && !validator.isColor(value2)) {
-    return false;
-  } if (validator.isVariable(value1) && validator.isVariable(value2)) {
-    return true;
-  } if (!validator.colorOpacity && (validator.isRgbColor(value1) || validator.isHslColor(value1))) {
-    return false;
-  } if (!validator.colorOpacity && (validator.isRgbColor(value2) || validator.isHslColor(value2))) {
-    return false;
-  } if (!validator.colorHexAlpha && (validator.isHexAlphaColor(value1) || validator.isHexAlphaColor(value2))) {
-    return false;
-  } if (validator.isColor(value1) && validator.isColor(value2)) {
-    return true;
-  }
-
-  return sameFunctionOrValue(validator, value1, value2);
-}
-
-function components(overrideCheckers) {
-  return function(validator, value1, value2, position) {
-    return overrideCheckers[position](validator, value1, value2);
-  };
-}
-
-function fontFamily(validator, value1, value2) {
-  return understandable(validator, value1, value2, 0, true);
-}
-
-function image(validator, value1, value2) {
-  if (!understandable(validator, value1, value2, 0, true) && !validator.isImage(value2)) {
-    return false;
-  } if (validator.isVariable(value1) && validator.isVariable(value2)) {
-    return true;
-  } if (validator.isImage(value2)) {
-    return true;
-  } if (validator.isImage(value1)) {
-    return false;
-  }
-
-  return sameFunctionOrValue(validator, value1, value2);
-}
-
-function keyword(propertyName) {
-  return function(validator, value1, value2) {
-    if (!understandable(validator, value1, value2, 0, true) && !validator.isKeyword(propertyName)(value2)) {
-      return false;
-    } if (validator.isVariable(value1) && validator.isVariable(value2)) {
-      return true;
-    }
-
-    return validator.isKeyword(propertyName)(value2);
-  };
-}
-
-function keywordWithGlobal(propertyName) {
-  return function(validator, value1, value2) {
-    if (!understandable(validator, value1, value2, 0, true)
-      && !(validator.isKeyword(propertyName)(value2) || validator.isGlobal(value2))) {
-      return false;
-    } if (validator.isVariable(value1) && validator.isVariable(value2)) {
-      return true;
-    }
-
-    return validator.isKeyword(propertyName)(value2) || validator.isGlobal(value2);
-  };
-}
-
-function propertyName(validator, value1, value2) {
-  if (!understandable(validator, value1, value2, 0, true) && !validator.isIdentifier(value2)) {
-    return false;
-  } if (validator.isVariable(value1) && validator.isVariable(value2)) {
-    return true;
-  }
-
-  return validator.isIdentifier(value2);
-}
-
-function sameFunctionOrValue(validator, value1, value2) {
-  return areSameFunction(validator, value1, value2)
-    ? true
-    : value1 === value2;
-}
-
-function textShadow(validator, value1, value2) {
-  if (!understandable(validator, value1, value2, 0, true)
-    && !(validator.isUnit(value2)
-    || validator.isColor(value2)
-    || validator.isGlobal(value2))) {
-    return false;
-  } if (validator.isVariable(value1) && validator.isVariable(value2)) {
-    return true;
-  }
-
-  return validator.isUnit(value2) || validator.isColor(value2) || validator.isGlobal(value2);
-}
-
-function time(validator, value1, value2) {
-  if (!understandable(validator, value1, value2, 0, true) && !validator.isTime(value2)) {
-    return false;
-  } if (validator.isVariable(value1) && validator.isVariable(value2)) {
-    return true;
-  } if (validator.isTime(value1) && !validator.isTime(value2)) {
-    return false;
-  } if (validator.isTime(value2)) {
-    return true;
-  } if (validator.isTime(value1)) {
-    return false;
-  } if (validator.isFunction(value1)
-    && !validator.isPrefixed(value1)
-    && validator.isFunction(value2)
-    && !validator.isPrefixed(value2)) {
-    return true;
-  }
-
-  return sameFunctionOrValue(validator, value1, value2);
-}
-
-function timingFunction(validator, value1, value2) {
-  if (!understandable(validator, value1, value2, 0, true)
-    && !(validator.isTimingFunction(value2) || validator.isGlobal(value2))) {
-    return false;
-  } if (validator.isVariable(value1) && validator.isVariable(value2)) {
-    return true;
-  }
-
-  return validator.isTimingFunction(value2) || validator.isGlobal(value2);
-}
-
-function unit(validator, value1, value2) {
-  if (!understandable(validator, value1, value2, 0, true) && !validator.isUnit(value2)) {
-    return false;
-  } if (validator.isVariable(value1) && validator.isVariable(value2)) {
-    return true;
-  } if (validator.isUnit(value1) && !validator.isUnit(value2)) {
-    return false;
-  } if (validator.isUnit(value2)) {
-    return true;
-  } if (validator.isUnit(value1)) {
-    return false;
-  } if (validator.isFunction(value1)
-    && !validator.isPrefixed(value1)
-    && validator.isFunction(value2)
-    && !validator.isPrefixed(value2)) {
-    return true;
-  }
-
-  return sameFunctionOrValue(validator, value1, value2);
-}
-
-function unitOrKeywordWithGlobal(propertyName) {
-  var byKeyword = keywordWithGlobal(propertyName);
-
-  return function(validator, value1, value2) {
-    return unit(validator, value1, value2) || byKeyword(validator, value1, value2);
-  };
-}
-
-function unitOrNumber(validator, value1, value2) {
-  if (!understandable(validator, value1, value2, 0, true)
-    && !(validator.isUnit(value2)
-    || validator.isNumber(value2))) {
-    return false;
-  } if (validator.isVariable(value1) && validator.isVariable(value2)) {
-    return true;
-  } if ((validator.isUnit(value1)
-    || validator.isNumber(value1))
-    && !(validator.isUnit(value2)
-    || validator.isNumber(value2))) {
-    return false;
-  } if (validator.isUnit(value2) || validator.isNumber(value2)) {
-    return true;
-  } if (validator.isUnit(value1) || validator.isNumber(value1)) {
-    return false;
-  } if (validator.isFunction(value1)
-    && !validator.isPrefixed(value1)
-    && validator.isFunction(value2)
-    && !validator.isPrefixed(value2)) {
-    return true;
-  }
-
-  return sameFunctionOrValue(validator, value1, value2);
-}
-
-function zIndex(validator, value1, value2) {
-  if (!understandable(validator, value1, value2, 0, true) && !validator.isZIndex(value2)) {
-    return false;
-  } if (validator.isVariable(value1) && validator.isVariable(value2)) {
-    return true;
-  }
-
-  return validator.isZIndex(value2);
-}
-
-module.exports = {
-  generic: {
-    color: color,
-    components: components,
-    image: image,
-    propertyName: propertyName,
-    time: time,
-    timingFunction: timingFunction,
-    unit: unit,
-    unitOrNumber: unitOrNumber
-  },
-  property: {
-    animationDirection: keywordWithGlobal('animation-direction'),
-    animationFillMode: keyword('animation-fill-mode'),
-    animationIterationCount: animationIterationCount,
-    animationName: animationName,
-    animationPlayState: keywordWithGlobal('animation-play-state'),
-    backgroundAttachment: keyword('background-attachment'),
-    backgroundClip: keywordWithGlobal('background-clip'),
-    backgroundOrigin: keyword('background-origin'),
-    backgroundPosition: backgroundPosition,
-    backgroundRepeat: keyword('background-repeat'),
-    backgroundSize: backgroundSize,
-    bottom: unitOrKeywordWithGlobal('bottom'),
-    borderCollapse: keyword('border-collapse'),
-    borderStyle: keywordWithGlobal('*-style'),
-    clear: keywordWithGlobal('clear'),
-    cursor: keywordWithGlobal('cursor'),
-    display: keywordWithGlobal('display'),
-    float: keywordWithGlobal('float'),
-    left: unitOrKeywordWithGlobal('left'),
-    fontFamily: fontFamily,
-    fontStretch: keywordWithGlobal('font-stretch'),
-    fontStyle: keywordWithGlobal('font-style'),
-    fontVariant: keywordWithGlobal('font-variant'),
-    fontWeight: keywordWithGlobal('font-weight'),
-    listStyleType: keywordWithGlobal('list-style-type'),
-    listStylePosition: keywordWithGlobal('list-style-position'),
-    outlineStyle: keywordWithGlobal('*-style'),
-    overflow: keywordWithGlobal('overflow'),
-    position: keywordWithGlobal('position'),
-    right: unitOrKeywordWithGlobal('right'),
-    textAlign: keywordWithGlobal('text-align'),
-    textDecoration: keywordWithGlobal('text-decoration'),
-    textOverflow: keywordWithGlobal('text-overflow'),
-    textShadow: textShadow,
-    top: unitOrKeywordWithGlobal('top'),
-    transform: sameFunctionOrValue,
-    verticalAlign: unitOrKeywordWithGlobal('vertical-align'),
-    visibility: keywordWithGlobal('visibility'),
-    whiteSpace: keywordWithGlobal('white-space'),
-    zIndex: zIndex
-  }
-};
diff --git a/node_modules/clean-css/lib/optimizer/configuration/properties/understandable.js b/node_modules/clean-css/lib/optimizer/configuration/properties/understandable.js
deleted file mode 100644
index 60f34293..00000000
--- a/node_modules/clean-css/lib/optimizer/configuration/properties/understandable.js
+++ /dev/null
@@ -1,15 +0,0 @@
-var sameVendorPrefixes = require('../../vendor-prefixes').same;
-
-function understandable(validator, value1, value2, _position, isPaired) {
-  if (!sameVendorPrefixes(value1, value2)) {
-    return false;
-  }
-
-  if (isPaired && validator.isVariable(value1) !== validator.isVariable(value2)) {
-    return false;
-  }
-
-  return true;
-}
-
-module.exports = understandable;
diff --git a/node_modules/clean-css/lib/optimizer/configuration/restore.js b/node_modules/clean-css/lib/optimizer/configuration/restore.js
deleted file mode 100644
index af902088..00000000
--- a/node_modules/clean-css/lib/optimizer/configuration/restore.js
+++ /dev/null
@@ -1,294 +0,0 @@
-var shallowClone = require('../clone').shallow;
-
-var Token = require('../../tokenizer/token');
-var Marker = require('../../tokenizer/marker');
-
-function isInheritOnly(values) {
-  for (var i = 0, l = values.length; i < l; i++) {
-    var value = values[i][1];
-
-    if (value != 'inherit' && value != Marker.COMMA && value != Marker.FORWARD_SLASH) { return false; }
-  }
-
-  return true;
-}
-
-function background(property, configuration, lastInMultiplex) {
-  var components = property.components;
-  var restored = [];
-  var needsOne, needsBoth;
-
-  function restoreValue(component) {
-    Array.prototype.unshift.apply(restored, component.value);
-  }
-
-  function isDefaultValue(component) {
-    var descriptor = configuration[component.name];
-
-    if (descriptor.doubleValues && descriptor.defaultValue.length == 1) {
-      return component.value[0][1] == descriptor.defaultValue[0]
-        && (component.value[1]
-          ? component.value[1][1] == descriptor.defaultValue[0]
-          : true);
-    } if (descriptor.doubleValues && descriptor.defaultValue.length != 1) {
-      return component.value[0][1] == descriptor.defaultValue[0]
-      && ((component.value[1] ? component.value[1][1] : component.value[0][1])
-        == descriptor.defaultValue[1]);
-    }
-    return component.value[0][1] == descriptor.defaultValue;
-  }
-
-  for (var i = components.length - 1; i >= 0; i--) {
-    var component = components[i];
-    var isDefault = isDefaultValue(component);
-
-    if (component.name == 'background-clip') {
-      var originComponent = components[i - 1];
-      var isOriginDefault = isDefaultValue(originComponent);
-
-      needsOne = component.value[0][1] == originComponent.value[0][1];
-
-      needsBoth = !needsOne && (
-        (isOriginDefault && !isDefault)
-        || (!isOriginDefault && !isDefault)
-        || (!isOriginDefault && isDefault && component.value[0][1] != originComponent.value[0][1]));
-
-      if (needsOne) {
-        restoreValue(originComponent);
-      } else if (needsBoth) {
-        restoreValue(component);
-        restoreValue(originComponent);
-      }
-
-      i--;
-    } else if (component.name == 'background-size') {
-      var positionComponent = components[i - 1];
-      var isPositionDefault = isDefaultValue(positionComponent);
-
-      needsOne = !isPositionDefault && isDefault;
-
-      needsBoth = !needsOne
-        && (isPositionDefault && !isDefault || !isPositionDefault && !isDefault);
-
-      if (needsOne) {
-        restoreValue(positionComponent);
-      } else if (needsBoth) {
-        restoreValue(component);
-        restored.unshift([Token.PROPERTY_VALUE, Marker.FORWARD_SLASH]);
-        restoreValue(positionComponent);
-      } else if (positionComponent.value.length == 1) {
-        restoreValue(positionComponent);
-      }
-
-      i--;
-    } else {
-      if (isDefault || configuration[component.name].multiplexLastOnly && !lastInMultiplex) { continue; }
-
-      restoreValue(component);
-    }
-  }
-
-  if (restored.length === 0 && property.value.length == 1 && property.value[0][1] == '0') { restored.push(property.value[0]); }
-
-  if (restored.length === 0) { restored.push([Token.PROPERTY_VALUE, configuration[property.name].defaultValue]); }
-
-  if (isInheritOnly(restored)) { return [restored[0]]; }
-
-  return restored;
-}
-
-function borderRadius(property) {
-  if (property.multiplex) {
-    var horizontal = shallowClone(property);
-    var vertical = shallowClone(property);
-
-    for (var i = 0; i < 4; i++) {
-      var component = property.components[i];
-
-      var horizontalComponent = shallowClone(property);
-      horizontalComponent.value = [component.value[0]];
-      horizontal.components.push(horizontalComponent);
-
-      var verticalComponent = shallowClone(property);
-      // FIXME: only shorthand compactor (see breakup#borderRadius) knows that border radius
-      // longhands have two values, whereas tokenizer does not care about populating 2nd value
-      // if it's missing, hence this fallback
-      verticalComponent.value = [component.value[1] || component.value[0]];
-      vertical.components.push(verticalComponent);
-    }
-
-    var horizontalValues = fourValues(horizontal);
-    var verticalValues = fourValues(vertical);
-
-    if (horizontalValues.length == verticalValues.length
-        && horizontalValues[0][1] == verticalValues[0][1]
-        && (horizontalValues.length > 1 ? horizontalValues[1][1] == verticalValues[1][1] : true)
-        && (horizontalValues.length > 2 ? horizontalValues[2][1] == verticalValues[2][1] : true)
-        && (horizontalValues.length > 3 ? horizontalValues[3][1] == verticalValues[3][1] : true)) {
-      return horizontalValues;
-    }
-    return horizontalValues.concat([[Token.PROPERTY_VALUE, Marker.FORWARD_SLASH]]).concat(verticalValues);
-  }
-  return fourValues(property);
-}
-
-function font(property, configuration) {
-  var components = property.components;
-  var restored = [];
-  var component;
-  var componentIndex = 0;
-  var fontFamilyIndex = 0;
-
-  if (property.value[0][1].indexOf(Marker.INTERNAL) === 0) {
-    property.value[0][1] = property.value[0][1].substring(Marker.INTERNAL.length);
-    return property.value;
-  }
-
-  // first four components are optional
-  while (componentIndex < 4) {
-    component = components[componentIndex];
-
-    if (component.value[0][1] != configuration[component.name].defaultValue) {
-      Array.prototype.push.apply(restored, component.value);
-    }
-
-    componentIndex++;
-  }
-
-  // then comes font-size
-  Array.prototype.push.apply(restored, components[componentIndex].value);
-  componentIndex++;
-
-  // then may come line-height
-  if (components[componentIndex].value[0][1] != configuration[components[componentIndex].name].defaultValue) {
-    Array.prototype.push.apply(restored, [[Token.PROPERTY_VALUE, Marker.FORWARD_SLASH]]);
-    Array.prototype.push.apply(restored, components[componentIndex].value);
-  }
-
-  componentIndex++;
-
-  // then comes font-family
-  while (components[componentIndex].value[fontFamilyIndex]) {
-    restored.push(components[componentIndex].value[fontFamilyIndex]);
-
-    if (components[componentIndex].value[fontFamilyIndex + 1]) {
-      restored.push([Token.PROPERTY_VALUE, Marker.COMMA]);
-    }
-
-    fontFamilyIndex++;
-  }
-
-  if (isInheritOnly(restored)) {
-    return [restored[0]];
-  }
-
-  return restored;
-}
-
-function fourValues(property) {
-  var components = property.components;
-  var value1 = components[0].value[0];
-  var value2 = components[1].value[0];
-  var value3 = components[2].value[0];
-  var value4 = components[3].value[0];
-
-  if (value1[1] == value2[1] && value1[1] == value3[1] && value1[1] == value4[1]) {
-    return [value1];
-  } if (value1[1] == value3[1] && value2[1] == value4[1]) {
-    return [value1, value2];
-  } if (value2[1] == value4[1]) {
-    return [value1, value2, value3];
-  }
-  return [value1, value2, value3, value4];
-}
-
-function multiplex(restoreWith) {
-  return function(property, configuration) {
-    if (!property.multiplex) { return restoreWith(property, configuration, true); }
-
-    var multiplexSize = 0;
-    var restored = [];
-    var componentMultiplexSoFar = {};
-    var i, l;
-
-    // At this point we don't know what's the multiplex size, e.g. how many background layers are there
-    for (i = 0, l = property.components[0].value.length; i < l; i++) {
-      if (property.components[0].value[i][1] == Marker.COMMA) { multiplexSize++; }
-    }
-
-    for (i = 0; i <= multiplexSize; i++) {
-      var _property = shallowClone(property);
-
-      // We split multiplex into parts and restore them one by one
-      for (var j = 0, m = property.components.length; j < m; j++) {
-        var componentToClone = property.components[j];
-        var _component = shallowClone(componentToClone);
-        _property.components.push(_component);
-
-        // The trick is some properties has more than one value, so we iterate over values looking for
-        // a multiplex separator - a comma
-        for (var k = componentMultiplexSoFar[_component.name] || 0, n = componentToClone.value.length; k < n; k++) {
-          if (componentToClone.value[k][1] == Marker.COMMA) {
-            componentMultiplexSoFar[_component.name] = k + 1;
-            break;
-          }
-
-          _component.value.push(componentToClone.value[k]);
-        }
-      }
-
-      // No we can restore shorthand value
-      var lastInMultiplex = i == multiplexSize;
-      var _restored = restoreWith(_property, configuration, lastInMultiplex);
-      Array.prototype.push.apply(restored, _restored);
-
-      if (i < multiplexSize) { restored.push([Token.PROPERTY_VALUE, Marker.COMMA]); }
-    }
-
-    return restored;
-  };
-}
-
-function withoutDefaults(property, configuration) {
-  var components = property.components;
-  var restored = [];
-
-  for (var i = components.length - 1; i >= 0; i--) {
-    var component = components[i];
-    var descriptor = configuration[component.name];
-
-    if (component.value[0][1] != descriptor.defaultValue || ('keepUnlessDefault' in descriptor) && !isDefault(components, configuration, descriptor.keepUnlessDefault)) {
-      restored.unshift(component.value[0]);
-    }
-  }
-
-  if (restored.length === 0) { restored.push([Token.PROPERTY_VALUE, configuration[property.name].defaultValue]); }
-
-  if (isInheritOnly(restored)) { return [restored[0]]; }
-
-  return restored;
-}
-
-function isDefault(components, configuration, propertyName) {
-  var component;
-  var i, l;
-
-  for (i = 0, l = components.length; i < l; i++) {
-    component = components[i];
-
-    if (component.name == propertyName && component.value[0][1] == configuration[propertyName].defaultValue) {
-      return true;
-    }
-  }
-
-  return false;
-}
-
-module.exports = {
-  background: background,
-  borderRadius: borderRadius,
-  font: font,
-  fourValues: fourValues,
-  multiplex: multiplex,
-  withoutDefaults: withoutDefaults
-};