updates

8 files changed, 767 insertions, 0 deletions

diff --git a/node_modules/install/.travis.yml b/node_modules/install/.travis.yml
new file mode 100644
index 00000000..566a8243
--- /dev/null
+++ b/node_modules/install/.travis.yml
@@ -0,0 +1,12 @@
+language: node_js
+sudo: false
+node_js:
+  - "12"
+  - "11"
+  - "10"
+  - "9"
+  - "8"
+  - "7"
+  - "6"
+  - "5"
+  - "4"
diff --git a/node_modules/install/LICENSE b/node_modules/install/LICENSE
new file mode 100644
index 00000000..ad7986c4
--- /dev/null
+++ b/node_modules/install/LICENSE
@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Benjamin Newman <ben@benjamn.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
diff --git a/node_modules/install/README.md b/node_modules/install/README.md
new file mode 100644
index 00000000..abbaadba
--- /dev/null
+++ b/node_modules/install/README.md
@@ -0,0 +1,123 @@
+# install [![Build Status](https://travis-ci.org/benjamn/install.svg?branch=master)](https://travis-ci.org/benjamn/install) [![Greenkeeper badge](https://badges.greenkeeper.io/benjamn/install.svg)](https://greenkeeper.io/)
+
+The [CommonJS module syntax](http://wiki.commonjs.org/wiki/Modules/1.1) is one of the most widely accepted conventions in the JavaScript ecosystem. Everyone seems to agree that `require` and `exports` are a reasonable way of expressing module dependencies and interfaces, and the tools for managing modular code are getting better all the time.
+
+Much less of a consensus has developed around the best way to deliver CommonJS modules to a web browser, where the synchronous semantics of `require` pose a non-trivial implementation challenge. This module loader contributes to that confusion, yet also demonstrates that an amply-featured module loader need not stretch into the hundreds or thousands of lines.
+
+Installation
+---
+From NPM:
+
+    npm install install
+
+From GitHub:
+
+    cd path/to/node_modules
+    git clone git://github.com/benjamn/install.git
+    cd install
+    npm install .
+
+Usage
+---
+
+The first step is to create an `install` function by calling the
+`makeInstaller` method. Note that all of the options described below are
+optional:
+
+```js
+var install = require("install").makeInstaller({
+  // Optional list of file extensions to be appended to required module
+  // identifiers if they do not exactly match an installed module.
+  extensions: [".js", ".json"],
+
+  // If defined, the options.fallback function will be called when no
+  // installed module is found for a required module identifier. Often
+  // options.fallback will be implemented in terms of the native Node
+  // require function, which has the ability to load binary modules.
+  fallback,
+
+  // Boolean flag indicating whether the installed code will be running in
+  // a web browser.
+  browser,
+
+  // List of fields to look for in package.json files to determine the
+  // main entry module of the package. The first field listed here whose
+  // value is a string will be used to resolve the entry module. Defaults
+  // to just ["main"], or ["browser", "main"] if options.browser is true.
+  mainFields: ["browser", "main"],
+});
+```
+
+The second step is to install some modules by passing a nested tree of
+objects and functions to the `install` function:
+
+```js
+var require = install({
+  "main.js"(require, exports, module) {
+    // On the client, the "assert" module should be install-ed just like
+    // any other module. On the server, since "assert" is a built-in Node
+    // module, it may make sense to let the options.fallback function
+    // handle such requirements. Both ways work equally well.
+    var assert = require("assert");
+
+    assert.strictEqual(
+      // This require function uses the same lookup rules as Node, so it
+      // will find "package" in the "node_modules" directory below.
+      require("package").name,
+      "/node_modules/package/entry.js"
+    );
+
+    exports.name = module.id;
+  },
+
+  node_modules: {
+    package: {
+      // If package.json is not defined, a module called "index.js" will
+      // be used as the main entry point for the package. Otherwise the
+      // exports.main property will identify the entry point.
+      "package.json"(require, exports, module) {
+        exports.name = "package";
+        exports.version = "0.1.0";
+        exports.main = "entry.js";
+      },
+
+      "entry.js"(require, exports, module) {
+        exports.name = module.id;
+      }
+    }
+  }
+});
+```
+
+Note that the `install` function merely installs modules without
+evaluating them, so the third and final step is to `require` any entry
+point modules that you wish to evaluate:
+
+```js
+console.log(require("./main").name);
+// => "/main.js"
+```
+
+This is the "root" `require` function returned by the `install`
+function. If you're using the `install` package in a CommonJS environment
+like Node, be careful that you don't overwrite the `require` function
+provided by that system.
+
+If you need to change the behavior of the `module` object that each module
+function receives as its third parameter, the shared `Module` constructor
+is exposed as a property of the `install` function returned by the
+`makeInstaller` factory:
+
+```js
+var install = makeInstaller(options);
+var proto = install.Module.prototype;
+
+// Wrap all Module.prototype.require calls with some sort of logging.
+proto.require = wrapWithLogging(proto.require);
+
+// Add a new method available to all modules via module.newMethod(...).
+proto.newMethod = function () {...};
+```
+
+Many more examples of how to use the `install` package can be found in the
+[tests](https://github.com/benjamn/install/blob/master/test/run.js).
diff --git a/node_modules/install/install.js b/node_modules/install/install.js
new file mode 100644
index 00000000..895678c7
--- /dev/null
+++ b/node_modules/install/install.js
@@ -0,0 +1,556 @@
+makeInstaller = function (options) {
+  "use strict";
+
+  options = options || {};
+
+  // These file extensions will be appended to required module identifiers
+  // if they do not exactly match an installed module.
+  var defaultExtensions = options.extensions || [".js", ".json"];
+
+  // If defined, the options.fallback function will be called when no
+  // installed module is found for a required module identifier. Often
+  // options.fallback will be implemented in terms of the native Node
+  // require function, which has the ability to load binary modules.
+  var fallback = options.fallback;
+
+  // List of fields to look for in package.json files to determine the
+  // main entry module of the package. The first field listed here whose
+  // value is a string will be used to resolve the entry module.
+  var mainFields = options.mainFields ||
+    // If options.mainFields is absent and options.browser is truthy,
+    // package resolution will prefer the "browser" field of package.json
+    // files to the "main" field. Note that this only supports
+    // string-valued "browser" fields for now, though in the future it
+    // might make sense to support the object version, a la browserify.
+    (options.browser ? ["browser", "main"] : ["main"]);
+
+  var hasOwn = {}.hasOwnProperty;
+  function strictHasOwn(obj, key) {
+    return isObject(obj) && isString(key) && hasOwn.call(obj, key);
+  }
+
+  // Cache for looking up File objects given absolute module identifiers.
+  // Invariants:
+  //   filesByModuleId[module.id] === fileAppendId(root, module.id)
+  //   filesByModuleId[module.id].module === module
+  var filesByModuleId = {};
+
+  // The file object representing the root directory of the installed
+  // module tree.
+  var root = new File("/", new File("/.."));
+  var rootRequire = makeRequire(root);
+
+  // Merges the given tree of directories and module factory functions
+  // into the tree of installed modules and returns a require function
+  // that behaves as if called from a module in the root directory.
+  function install(tree, options) {
+    if (isObject(tree)) {
+      fileMergeContents(root, tree, options);
+    }
+    return rootRequire;
+  }
+
+  // Replace this function to enable Module.prototype.prefetch.
+  install.fetch = function (ids) {
+    throw new Error("fetch not implemented");
+  };
+
+  // This constructor will be used to instantiate the module objects
+  // passed to module factory functions (i.e. the third argument after
+  // require and exports), and is exposed as install.Module in case the
+  // caller of makeInstaller wishes to modify Module.prototype.
+  function Module(id) {
+    this.id = id;
+
+    // The Node implementation of module.children unfortunately includes
+    // only those child modules that were imported for the first time by
+    // this parent module (i.e., child.parent === this).
+    this.children = [];
+
+    // This object is an install.js extension that includes all child
+    // modules imported by this module, even if this module is not the
+    // first to import them.
+    this.childrenById = {};
+  }
+
+  // Used to keep module.prefetch promise resolutions well-ordered.
+  var lastPrefetchPromise;
+
+  // May be shared by multiple sequential calls to module.prefetch.
+  // Initialized to {} only when necessary.
+  var missing;
+
+  Module.prototype.prefetch = function (id) {
+    var module = this;
+    var parentFile = getOwn(filesByModuleId, module.id);
+
+    lastPrefetchPromise = lastPrefetchPromise || Promise.resolve();
+    var previousPromise = lastPrefetchPromise;
+
+    function walk(module) {
+      var file = getOwn(filesByModuleId, module.id);
+      if (fileIsDynamic(file) && ! file.pending) {
+        file.pending = true;
+        missing = missing || {};
+
+        // These are the data that will be exposed to the install.fetch
+        // callback, so it's worth documenting each item with a comment.
+        missing[module.id] = {
+          // The CommonJS module object that will be exposed to this
+          // dynamic module when it is evaluated. Note that install.fetch
+          // could decide to populate module.exports directly, instead of
+          // fetching anything. In that case, install.fetch should omit
+          // this module from the tree that it produces.
+          module: file.module,
+          // List of module identifier strings imported by this module.
+          // Note that the missing object already contains all available
+          // dependencies (including transitive dependencies), so
+          // install.fetch should not need to traverse these dependencies
+          // in most cases; however, they may be useful for other reasons.
+          // Though the strings are unique, note that two different
+          // strings could resolve to the same module.
+          deps: Object.keys(file.deps),
+          // The options (if any) that were passed as the second argument
+          // to the install(tree, options) function when this stub was
+          // first registered. Typically contains options.extensions, but
+          // could contain any information appropriate for the entire tree
+          // as originally installed. These options will be automatically
+          // inherited by the newly fetched modules, so install.fetch
+          // should not need to modify them.
+          options: file.options,
+          // Any stub data included in the array notation from the
+          // original entry for this dynamic module. Typically contains
+          // "main" and/or "browser" fields for package.json files, and is
+          // otherwise undefined.
+          stub: file.stub
+        };
+
+        each(file.deps, function (parentId, id) {
+          fileResolve(file, id);
+        });
+
+        each(module.childrenById, walk);
+      }
+    }
+
+    return lastPrefetchPromise = new Promise(function (resolve) {
+      var absChildId = module.resolve(id);
+      each(module.childrenById, walk);
+      resolve(absChildId);
+
+    }).then(function (absChildId) {
+      // Grab the current missing object and fetch its contents.
+      var toBeFetched = missing;
+      missing = null;
+
+      function clearPending() {
+        if (toBeFetched) {
+          Object.keys(toBeFetched).forEach(function (id) {
+            getOwn(filesByModuleId, id).pending = false;
+          });
+        }
+      }
+
+      return new Promise(function (resolve) {
+        // The install.fetch function takes an object mapping missing
+        // dynamic module identifiers to options objects, and should
+        // return a Promise that resolves to a module tree that can be
+        // installed. As an optimization, if there were no missing dynamic
+        // modules, then we can skip calling install.fetch entirely.
+        resolve(toBeFetched && install.fetch(toBeFetched));
+
+      }).then(function (tree) {
+        function both() {
+          install(tree);
+          clearPending();
+          return absChildId;
+        }
+
+        // Although we want multiple install.fetch calls to run in
+        // parallel, it is important that the promises returned by
+        // module.prefetch are resolved in the same order as the original
+        // calls to module.prefetch, because previous fetches may include
+        // modules assumed to exist by more recent module.prefetch calls.
+        // Whether previousPromise was resolved or rejected, carry on with
+        // the installation regardless.
+        return previousPromise.then(both, both);
+
+      }, function (error) {
+        // Fixes https://github.com/meteor/meteor/issues/10182.
+        clearPending();
+        throw error;
+      });
+    });
+  };
+
+  install.Module = Module;
+
+  function getOwn(obj, key) {
+    return strictHasOwn(obj, key) && obj[key];
+  }
+
+  function isObject(value) {
+    return value !== null && typeof value === "object";
+  }
+
+  function isFunction(value) {
+    return typeof value === "function";
+  }
+
+  function isString(value) {
+    return typeof value === "string";
+  }
+
+  function makeMissingError(id) {
+    return new Error("Cannot find module '" + id + "'");
+  }
+
+  Module.prototype.resolve = function (id) {
+    var file = fileResolve(filesByModuleId[this.id], id);
+    if (file) return file.module.id;
+    var error = makeMissingError(id);
+    if (fallback && isFunction(fallback.resolve)) {
+      return fallback.resolve(id, this.id, error);
+    }
+    throw error;
+  };
+
+  Module.prototype.require = function require(id) {
+    var result = fileResolve(filesByModuleId[this.id], id);
+    if (result) {
+      return fileEvaluate(result, this);
+    }
+
+    var error = makeMissingError(id);
+
+    if (isFunction(fallback)) {
+      return fallback(
+        id, // The missing module identifier.
+        this.id, // ID of the parent module.
+        error // The error we would have thrown.
+      );
+    }
+
+    throw error;
+  };
+
+  function makeRequire(file) {
+    var module = file.module;
+
+    function require(id) {
+      return module.require(id);
+    }
+
+    require.extensions = fileGetExtensions(file).slice(0);
+
+    require.resolve = function resolve(id) {
+      return module.resolve(id);
+    };
+
+    return require;
+  }
+
+  // File objects represent either directories or modules that have been
+  // installed. When a `File` respresents a directory, its `.contents`
+  // property is an object containing the names of the files (or
+  // directories) that it contains. When a `File` represents a module, its
+  // `.contents` property is a function that can be invoked with the
+  // appropriate `(require, exports, module)` arguments to evaluate the
+  // module. If the `.contents` property is a string, that string will be
+  // resolved as a module identifier, and the exports of the resulting
+  // module will provide the exports of the original file. The `.parent`
+  // property of a File is either a directory `File` or `null`. Note that
+  // a child may claim another `File` as its parent even if the parent
+  // does not have an entry for that child in its `.contents` object.
+  // This is important for implementing anonymous files, and preventing
+  // child modules from using `../relative/identifier` syntax to examine
+  // unrelated modules.
+  function File(moduleId, parent) {
+    var file = this;
+
+    // Link to the parent file.
+    file.parent = parent = parent || null;
+
+    // The module object for this File, which will eventually boast an
+    // .exports property when/if the file is evaluated.
+    file.module = new Module(moduleId);
+    filesByModuleId[moduleId] = file;
+
+    // The .contents of the file can be either (1) an object, if the file
+    // represents a directory containing other files; (2) a factory
+    // function, if the file represents a module that can be imported; (3)
+    // a string, if the file is an alias for another file; or (4) null, if
+    // the file's contents are not (yet) available.
+    file.contents = null;
+
+    // Set of module identifiers imported by this module. Note that this
+    // set is not necessarily complete, so don't rely on it unless you
+    // know what you're doing.
+    file.deps = {};
+  }
+
+  function fileEvaluate(file, parentModule) {
+    var module = file.module;
+    if (! strictHasOwn(module, "exports")) {
+      var contents = file.contents;
+      if (! contents) {
+        // If this file was installed with array notation, and the array
+        // contained one or more objects but no functions, then the combined
+        // properties of the objects are treated as a temporary stub for
+        // file.module.exports. This is particularly important for partial
+        // package.json modules, so that the resolution logic can know the
+        // value of the "main" and/or "browser" fields, at least, even if
+        // the rest of the package.json file is not (yet) available.
+        if (file.stub) {
+          return file.stub;
+        }
+
+        throw makeMissingError(module.id);
+      }
+
+      if (parentModule) {
+        module.parent = parentModule;
+        var children = parentModule.children;
+        if (Array.isArray(children)) {
+          children.push(module);
+        }
+      }
+
+      contents(
+        makeRequire(file),
+        // If the file had a .stub, reuse the same object for exports.
+        module.exports = file.stub || {},
+        module,
+        file.module.id,
+        file.parent.module.id
+      );
+
+      module.loaded = true;
+    }
+
+    // The module.runModuleSetters method will be deprecated in favor of
+    // just module.runSetters: https://github.com/benjamn/reify/pull/160
+    var runSetters = module.runSetters || module.runModuleSetters;
+    if (isFunction(runSetters)) {
+      runSetters.call(module);
+    }
+
+    return module.exports;
+  }
+
+  function fileIsDirectory(file) {
+    return file && isObject(file.contents);
+  }
+
+  function fileIsDynamic(file) {
+    return file && file.contents === null;
+  }
+
+  function fileMergeContents(file, contents, options) {
+    if (Array.isArray(contents)) {
+      contents.forEach(function (item) {
+        if (isString(item)) {
+          file.deps[item] = file.module.id;
+        } else if (isFunction(item)) {
+          contents = item;
+        } else if (isObject(item)) {
+          file.stub = file.stub || {};
+          each(item, function (value, key) {
+            file.stub[key] = value;
+          });
+        }
+      });
+
+      if (! isFunction(contents)) {
+        // If the array did not contain a function, merge nothing.
+        contents = null;
+      }
+
+    } else if (! isFunction(contents) &&
+               ! isString(contents) &&
+               ! isObject(contents)) {
+      // If contents is neither an array nor a function nor a string nor
+      // an object, just give up and merge nothing.
+      contents = null;
+    }
+
+    if (contents) {
+      file.contents = file.contents || (isObject(contents) ? {} : contents);
+      if (isObject(contents) && fileIsDirectory(file)) {
+        each(contents, function (value, key) {
+          if (key === "..") {
+            child = file.parent;
+
+          } else {
+            var child = getOwn(file.contents, key);
+
+            if (! child) {
+              child = file.contents[key] = new File(
+                file.module.id.replace(/\/*$/, "/") + key,
+                file
+              );
+
+              child.options = options;
+            }
+          }
+
+          fileMergeContents(child, value, options);
+        });
+      }
+    }
+  }
+
+  function each(obj, callback, context) {
+    Object.keys(obj).forEach(function (key) {
+      callback.call(this, obj[key], key);
+    }, context);
+  }
+
+  function fileGetExtensions(file) {
+    return file.options
+      && file.options.extensions
+      || defaultExtensions;
+  }
+
+  function fileAppendIdPart(file, part, extensions) {
+    // Always append relative to a directory.
+    while (file && ! fileIsDirectory(file)) {
+      file = file.parent;
+    }
+
+    if (! file || ! part || part === ".") {
+      return file;
+    }
+
+    if (part === "..") {
+      return file.parent;
+    }
+
+    var exactChild = getOwn(file.contents, part);
+
+    // Only consider multiple file extensions if this part is the last
+    // part of a module identifier and not equal to `.` or `..`, and there
+    // was no exact match or the exact match was a directory.
+    if (extensions && (! exactChild || fileIsDirectory(exactChild))) {
+      for (var e = 0; e < extensions.length; ++e) {
+        var child = getOwn(file.contents, part + extensions[e]);
+        if (child && ! fileIsDirectory(child)) {
+          return child;
+        }
+      }
+    }
+
+    return exactChild;
+  }
+
+  function fileAppendId(file, id, extensions) {
+    var parts = id.split("/");
+
+    // Use `Array.prototype.every` to terminate iteration early if
+    // `fileAppendIdPart` returns a falsy value.
+    parts.every(function (part, i) {
+      return file = i < parts.length - 1
+        ? fileAppendIdPart(file, part)
+        : fileAppendIdPart(file, part, extensions);
+    });
+
+    return file;
+  }
+
+  function recordChild(parentModule, childFile) {
+    var childModule = childFile && childFile.module;
+    if (parentModule && childModule) {
+      parentModule.childrenById[childModule.id] = childModule;
+    }
+  }
+
+  function fileResolve(file, id, parentModule, seenDirFiles) {
+    var parentModule = parentModule || file.module;
+    var extensions = fileGetExtensions(file);
+
+    file =
+      // Absolute module identifiers (i.e. those that begin with a `/`
+      // character) are interpreted relative to the root directory, which
+      // is a slight deviation from Node, which has access to the entire
+      // file system.
+      id.charAt(0) === "/" ? fileAppendId(root, id, extensions) :
+      // Relative module identifiers are interpreted relative to the
+      // current file, naturally.
+      id.charAt(0) === "." ? fileAppendId(file, id, extensions) :
+      // Top-level module identifiers are interpreted as referring to
+      // packages in `node_modules` directories.
+      nodeModulesLookup(file, id, extensions);
+
+    // If the identifier resolves to a directory, we use the same logic as
+    // Node to find an `index.js` or `package.json` file to evaluate.
+    while (fileIsDirectory(file)) {
+      seenDirFiles = seenDirFiles || [];
+
+      // If the "main" field of a `package.json` file resolves to a
+      // directory we've already considered, then we should not attempt to
+      // read the same `package.json` file again. Using an array as a set
+      // is acceptable here because the number of directories to consider
+      // is rarely greater than 1 or 2. Also, using indexOf allows us to
+      // store File objects instead of strings.
+      if (seenDirFiles.indexOf(file) < 0) {
+        seenDirFiles.push(file);
+
+        var pkgJsonFile = fileAppendIdPart(file, "package.json");
+        var pkg = pkgJsonFile && fileEvaluate(pkgJsonFile, parentModule);
+        var mainFile, resolved = pkg && mainFields.some(function (name) {
+          var main = pkg[name];
+          if (isString(main)) {
+            // The "main" field of package.json does not have to begin
+            // with ./ to be considered relative, so first we try
+            // simply appending it to the directory path before
+            // falling back to a full fileResolve, which might return
+            // a package from a node_modules directory.
+            return mainFile = fileAppendId(file, main, extensions) ||
+              fileResolve(file, main, parentModule, seenDirFiles);
+          }
+        });
+
+        if (resolved && mainFile) {
+          file = mainFile;
+          recordChild(parentModule, pkgJsonFile);
+          // The fileAppendId call above may have returned a directory,
+          // so continue the loop to make sure we resolve it to a
+          // non-directory file.
+          continue;
+        }
+      }
+
+      // If we didn't find a `package.json` file, or it didn't have a
+      // resolvable `.main` property, the only possibility left to
+      // consider is that this directory contains an `index.js` module.
+      // This assignment almost always terminates the while loop, because
+      // there's very little chance `fileIsDirectory(file)` will be true
+      // for `fileAppendIdPart(file, "index", extensions)`. However, in
+      // principle it is remotely possible that a file called `index.js`
+      // could be a directory instead of a file.
+      file = fileAppendIdPart(file, "index", extensions);
+    }
+
+    if (file && isString(file.contents)) {
+      file = fileResolve(file, file.contents, parentModule, seenDirFiles);
+    }
+
+    recordChild(parentModule, file);
+
+    return file;
+  };
+
+  function nodeModulesLookup(file, id, extensions) {
+    for (var resolved; file && ! resolved; file = file.parent) {
+      resolved = fileIsDirectory(file) &&
+        fileAppendId(file, "node_modules/" + id, extensions);
+    }
+    return resolved;
+  }
+
+  return install;
+};
+
+if (typeof exports === "object") {
+  exports.makeInstaller = makeInstaller;
+}
diff --git a/node_modules/install/install.min.js b/node_modules/install/install.min.js
new file mode 100644
index 00000000..0109a4c2
--- /dev/null
+++ b/node_modules/install/install.min.js
@@ -0,0 +1 @@
+makeInstaller=function(n){"use strict";var t=(n=n||{}).extensions||[".js",".json"],e=n.fallback,r=n.mainFields||(n.browser?["browser","main"]:["main"]),o={}.hasOwnProperty;function i(n,t){return p(n)&&m(t)&&o.call(n,t)}var u,s,c={},f=new w("/",new w("/..")),l=b(f);function a(n,t){return p(n)&&function n(t,e,r){Array.isArray(e)?(e.forEach(function(n){m(n)?t.deps[n]=t.module.id:v(n)?e=n:p(n)&&(t.stub=t.stub||{},k(n,function(n,e){t.stub[e]=n}))}),v(e)||(e=null)):v(e)||m(e)||p(e)||(e=null);e&&(t.contents=t.contents||(p(e)?{}:e),p(e)&&j(t)&&k(e,function(e,o){if(".."===o)i=t.parent;else{var i=h(t.contents,o);i||((i=t.contents[o]=new w(t.module.id.replace(/\/*$/,"/")+o,t)).options=r)}n(i,e,r)}))}(f,n,t),l}function d(n){this.id=n,this.children=[],this.childrenById={}}function h(n,t){return i(n,t)&&n[t]}function p(n){return null!==n&&"object"==typeof n}function v(n){return"function"==typeof n}function m(n){return"string"==typeof n}function y(n){return new Error("Cannot find module '"+n+"'")}function b(n){var t=n.module;function e(n){return t.require(n)}return e.extensions=g(n).slice(0),e.resolve=function(n){return t.resolve(n)},e}function w(n,t){this.parent=t=t||null,this.module=new d(n),c[n]=this,this.contents=null,this.deps={}}function x(n,t){var e=n.module;if(!i(e,"exports")){var r=n.contents;if(!r){if(n.stub)return n.stub;throw y(e.id)}if(t){e.parent=t;var o=t.children;Array.isArray(o)&&o.push(e)}r(b(n),e.exports=n.stub||{},e,n.module.id,n.parent.module.id),e.loaded=!0}var u=e.runSetters||e.runModuleSetters;return v(u)&&u.call(e),e.exports}function j(n){return n&&p(n.contents)}function k(n,t,e){Object.keys(n).forEach(function(e){t.call(this,n[e],e)},e)}function g(n){return n.options&&n.options.extensions||t}function I(n,t,e){for(;n&&!j(n);)n=n.parent;if(!n||!t||"."===t)return n;if(".."===t)return n.parent;var r=h(n.contents,t);if(e&&(!r||j(r)))for(var o=0;o<e.length;++o){var i=h(n.contents,t+e[o]);if(i&&!j(i))return i}return r}function A(n,t,e){var r=t.split("/");return r.every(function(t,o){return n=o<r.length-1?I(n,t):I(n,t,e)}),n}function E(n,t){var e=t&&t.module;n&&e&&(n.childrenById[e.id]=e)}function O(n,t,e,o){e=e||n.module;var i=g(n);for(n="/"===t.charAt(0)?A(f,t,i):"."===t.charAt(0)?A(n,t,i):function(n,t,e){for(var r;n&&!r;n=n.parent)r=j(n)&&A(n,"node_modules/"+t,e);return r}(n,t,i);j(n);){if((o=o||[]).indexOf(n)<0){o.push(n);var u,s=I(n,"package.json"),c=s&&x(s,e);if(c&&r.some(function(t){var r=c[t];if(m(r))return u=A(n,r,i)||O(n,r,e,o)})&&u){n=u,E(e,s);continue}}n=I(n,"index",i)}return n&&m(n.contents)&&(n=O(n,n.contents,e,o)),E(e,n),n}return a.fetch=function(n){throw new Error("fetch not implemented")},d.prototype.prefetch=function(n){var t=this,e=(h(c,t.id),u=u||Promise.resolve());function r(n){var t=h(c,n.id);(function(n){return n&&null===n.contents})(t)&&!t.pending&&(t.pending=!0,(s=s||{})[n.id]={module:t.module,deps:Object.keys(t.deps),options:t.options,stub:t.stub},k(t.deps,function(n,e){O(t,e)}),k(n.childrenById,r))}return u=new Promise(function(e){var o=t.resolve(n);k(t.childrenById,r),e(o)}).then(function(n){var t=s;function r(){t&&Object.keys(t).forEach(function(n){h(c,n).pending=!1})}return s=null,new Promise(function(n){n(t&&a.fetch(t))}).then(function(t){function o(){return a(t),r(),n}return e.then(o,o)},function(n){throw r(),n})})},a.Module=d,d.prototype.resolve=function(n){var t=O(c[this.id],n);if(t)return t.module.id;var r=y(n);if(e&&v(e.resolve))return e.resolve(n,this.id,r);throw r},d.prototype.require=function(n){var t=O(c[this.id],n);if(t)return x(t,this);var r=y(n);if(v(e))return e(n,this.id,r);throw r},a},"object"==typeof exports&&(exports.makeInstaller=makeInstaller);
diff --git a/node_modules/install/package.json b/node_modules/install/package.json
new file mode 100644
index 00000000..651ef86b
--- /dev/null
+++ b/node_modules/install/package.json
@@ -0,0 +1,41 @@
+{
+  "author": {
+    "name": "Ben Newman",
+    "email": "bn@cs.stanford.edu"
+  },
+  "name": "install",
+  "version": "0.13.0",
+  "description": "Minimal JavaScript module loader",
+  "keywords": [
+    "modules",
+    "require",
+    "commonjs",
+    "exports",
+    "browser",
+    "packaging",
+    "packager",
+    "install"
+  ],
+  "license": "MIT",
+  "homepage": "http://github.com/benjamn/install",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/benjamn/install.git"
+  },
+  "main": "install.js",
+  "scripts": {
+    "prepublish": "scripts/prepublish.sh",
+    "docs": "scripts/docs.sh",
+    "test": "mocha --reporter spec --full-trace test/run.js"
+  },
+  "devDependencies": {
+    "docco": "^0.8.0",
+    "mocha": "^5.0.0",
+    "reify": "^0.18.1",
+    "terser": "^3.16.0"
+  },
+  "license": "MIT",
+  "engines": {
+    "node": ">= 0.10"
+  }
+}
diff --git a/node_modules/install/scripts/docs.sh b/node_modules/install/scripts/docs.sh
new file mode 100755
index 00000000..4fe073d4
--- /dev/null
+++ b/node_modules/install/scripts/docs.sh
@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+cd $(dirname $0)/..
+docco install.js
+cd docs
+mv install.html index.html
+cd ..
diff --git a/node_modules/install/scripts/prepublish.sh b/node_modules/install/scripts/prepublish.sh
new file mode 100755
index 00000000..a8da2194
--- /dev/null
+++ b/node_modules/install/scripts/prepublish.sh
@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+
+cd $(dirname $0)/..
+
+terser install.js -c -m > install.min.js