Bind keydown on root view to catch events that aren't handled by ace

Also fixed a bug where the GlobalKeymap wasn't returning true when it
matched a binding, which caused key events to be processed twice when
they bubbled out of the editor and hit the root view.

src/atom/editor.coffee

@@ -38,7 +38,7 @@ class Editor extends Template
       @aceEditor.setKeyboardHandler
         handleKeyboard: (data, hashId, keyString, keyCode, event) =>
           if event and @keyEventHandler?.handleKeyEvent(event)
-            {command: {exec: ->}}
+            { command: { exec: -> }}
           else
             null
 

src/atom/global-keymap.coffee

@@ -20,6 +20,6 @@ class GlobalKeymap
       for bindingSet in candidateBindingSets
         if command = bindingSet.commandForEvent(event)
           $(event.target).trigger(command)
-          return
+          return true
       currentNode = currentNode.parent()
     false

src/atom/root-view.coffee

@@ -22,7 +22,7 @@ class RootView extends Template
 
     initialize: ({url}) ->
       @globalKeymap = new GlobalKeymap
-
+      @on 'keydown', (e) => @globalKeymap.handleKeyEvent(e)
       @editor.keyEventHandler = @globalKeymap
 
       @globalKeymap.bindKeys '*'
@@ -30,7 +30,7 @@ class RootView extends Template
         'meta-w': 'close'
         'meta-t': 'toggle-file-finder'
 
-      @on 'toggle-file-finder', (e) => @toggleFileFinder()
+      @on 'toggle-file-finder', => @toggleFileFinder()
 
       if url
         @project = new Project(fs.directory(url))