Notification Shortcuts & WiFi display (1 of 2) - Port from Slimroms (Slim Bean)

Added notification shortcuts to the notification panel and also the option to display the
current WiFi Network connected to.

Screenshot 1: http://i49.tinypic.com/333wff6.png
Screenshot 2: http://i50.tinypic.com/2uh2y45.png

Compiled and tested with v21, working well all activities work correctly and display
a set of predefined shortcuts and the ability to choose custom shortcuts.

Second commit is for android_packages_apps_settings.

Change-Id: I09af9a1fbc650a39aeb1a135f1300bc20cfac222