Notification Shortcuts & WiFi display (2 of 2)

I wanted to do this as a pull request so anybody could comment on this prior to it being pushed to the repo, just in case anybody has any concerns or objections to including this. 

These commits port the Notification Shortcuts & WiFi network display from Slimroms, the second commit corrected the style of the notification shortcuts menu. A new screenshot is below (others are available in the commit messages).

Corrected Menu screenshot: http://i46.tinypic.com/34ipzee.png

Compiled successfully with v21.0.0, I have tested all possible features such as adding and removing shortcuts, using various shortcuts for activities & applications, applying color, going back to stock colourings etc.