refactored UBWindow to be in control of the main view
finished refactoring and exposing wallpaper url to webview
working on getting wallpaper change notifications.
getting notifications when switching workspaces
added afterRender hook. cleanups and specs
Fixes and improvements for wallpaper service.

Pluged memory leak. Only notifiying wallpaper change when it actually
did.
Refactorings and fixes in os_bridge.

Cleaned up loading callbacks and improved loading logic. Re-using the
same image for caching.
trying to fix code signing issues on 10.10
Merge branch 'wallpaper'

Conflicts:
	Übersicht/UBAppDelegate.m
	Übersicht/UBWindow.m
	server/release/public/main.js
	server/release/server.js
	server/spec/frontend_specs.js
switching to Quartz since NSScreen is unreliable as !*@#&^
screen control seems to work
making sure wallpaper is refreshed on screen change
removed debug statement
Use display names in the menu, instead of just numbers
Merge pull request #19 from gboudreau/screen-control

Use display names in the menu, instead of just numbers
text formating change for displays in menu
quick fix for wigets with spaces in their name
Fixed issue with incorrect screen being marked.

Also refactored a bit for clarity
getting screen names the non deprecated way
fixed framework search paths. code signing still broken on 10.10