Add command to open user config in an editor

src/config.coffee

@@ -98,6 +98,10 @@ class Config
     _.extend hash, defaults
     @update()
 
+  # Public: Get the path to the config file being used.
+  getUserConfigPath: ->
+    @configFilePath
+
   # Public: Returns a new {Object} containing all of settings and defaults.
   getSettings: ->
     _.deepExtend(@settings, @defaultSettings)

src/workspace-view.coffee

@@ -125,6 +125,7 @@ class WorkspaceView extends View
 
     @command 'window:open-your-stylesheet', => @model.openUserStylesheet()
     @command 'window:open-your-keymap', => @model.openUserKeymap()
+    @command 'window:open-your-config', => @model.openUserConfig()
 
   # Private:
   handleFocus: (e) ->

src/workspace.coffee

@@ -46,6 +46,10 @@ class Workspace extends Model
   openUserKeymap: ->
     @open(atom.keymap.getUserKeymapPath())
 
+  # Private: Open ~/.atom/config.cson or ~/.atom/config.json
+  openUserConfig: ->
+    @open(atom.config.getUserConfigPath())
+
   # Public: Asynchronously opens a given a filepath in Atom.
   #
   # * filePath: A file path