Testing tweaks to operate Atom in single window mode

src/app/window.coffee

@@ -41,7 +41,7 @@ windowAdditions =
   # Note: RootView assigns itself on window on initialization so that
   # window.rootView is available when loading user configuration
   attachRootView: (pathToOpen) ->
-    if rootViewState = atom.rootViewStates[$windowNumber]
+    if rootViewState = atom.rootViewStates?[$windowNumber]
       RootView.deserialize(JSON.parse(rootViewState))
     else
       new RootView(pathToOpen)

src/window-bootstrap.coffee

@@ -1,4 +1,6 @@
 # Like sands through the hourglass, so are the days of our lives.
 require 'window'
+Atom = require 'atom'
+window.atom = new Atom(atom.loadPath, $native)
 window.startup $pathToOpen