Rename extensions to packages

We now look at the `core.disabledPackages` config key. Rename the `src/extensions` directory to `src/packages`. The config object now talks about loading packages instead of extensions.

src/app/config.coffee

@@ -5,10 +5,10 @@ EventEmitter = require 'event-emitter'
 configDirPath = fs.absolute("~/.atom")
 configJsonPath = fs.join(configDirPath, "config.json")
 userInitScriptPath = fs.join(configDirPath, "atom.coffee")
-bundledExtensionsDirPath = fs.join(resourcePath, "src/extensions")
-userExtensionsDirPath = fs.join(configDirPath, "extensions")
+bundledPackagesDirPath = fs.join(resourcePath, "src/packages")
+userPackagesDirPath = fs.join(configDirPath, "packages")
 
-require.paths.unshift userExtensionsDirPath
+require.paths.unshift userPackagesDirPath
 
 module.exports =
 class Config
@@ -32,17 +32,17 @@ class Config
     @setDefaults "core", require('root-view').configDefaults
     @setDefaults "editor", require('editor').configDefaults
 
-  getAvailableExtensions: ->
-    availableExtensions =
-      fs.list(bundledExtensionsDirPath)
-        .concat(fs.list(userExtensionsDirPath)).map (path) -> fs.base(path)
-    _.unique(availableExtensions)
+  getAvailablePackages: ->
+    availablePackages =
+      fs.list(bundledPackagesDirPath)
+        .concat(fs.list(userPackagesDirPath)).map (path) -> fs.base(path)
+    _.unique(availablePackages)
 
   loadPackages: ->
-    disabledExtensions = config.get("core.disabledExtensions") ? []
-    for extensionName in @getAvailableExtensions()
-      unless _.contains disabledExtensions, extensionName
-        atom.loadPackage(extensionName)
+    disabledPackages = config.get("core.disabledPackages") ? []
+    for packageName in @getAvailablePackages()
+      unless _.contains disabledPackages, packageName
+        atom.loadPackage(packageName)
 
   get: (keyPath) ->
     keys = @keysForKeyPath(keyPath)

src/app/root-view.coffee

@@ -17,7 +17,7 @@ module.exports =
 class RootView extends View
   @configDefaults:
     ignoredNames: [".git", ".svn", ".DS_Store"]
-    disabledExtensions: []
+    disabledPackages: []
 
   @content: ->
     @div id: 'root-view', tabindex: -1, =>

src/packages/snippets/src/snippets.coffee

@@ -6,7 +6,7 @@ SnippetExpansion = require 'snippets/src/snippet-expansion'
 module.exports =
   name: 'Snippets'
   snippetsByExtension: {}
-  snippetsParser: PEG.buildParser(fs.read(require.resolve 'extensions/snippets/snippets.pegjs'), trackLineAndColumn: true)
+  snippetsParser: PEG.buildParser(fs.read(require.resolve 'snippets/snippets.pegjs'), trackLineAndColumn: true)
 
   activate: (@rootView) ->
     @loadSnippets()

src/stdlib/require.coffee

@@ -3,7 +3,7 @@ paths = [
   "#{window.resourcePath}/benchmark"
   "#{window.resourcePath}/src/stdlib"
   "#{window.resourcePath}/src/app"
-  "#{window.resourcePath}/src/extensions"
+  "#{window.resourcePath}/src/packages"
   "#{window.resourcePath}/src"
   "#{window.resourcePath}/vendor"
   "#{window.resourcePath}/static"