fb: correct power menu navring icon

had a small jump in it when activated

Change-Id: Ibfb3fc1dbdc6b4d95f366df85dea0d2dfa6f404c
fb: fetch navbar glow color from color.xml

better for new theming engine which will come in future

and now I will start doing again usefull patches lol. Just
needed to do something other.

Change-Id: I35dde45e47c59a2407c191d0077f0adb91f32381

Conflicts:
	packages/SystemUI/res/values/colors.xml
Fix: external storage problem NavRing and NavBar applications

If the user binds an app which is located on the
external sdcard and is rebooting the button icon
will be left blank because the navring/navbar is already
constructed before the sdcard is mounted. To avoid
this we listen to the app available intents.
If it is not available the ring target/navbar button shows the none icon.
 When available it shows the
correct app icon. So that the user can clearly see
this app is accessable or not. As well when the
user goes into mass storage mode or does
unmount the sdcard or whatever case could
happen that the application is not there.

Reference:
https://review.slimroms.net:8443/#/c/12364/
https://review.slimroms.net:8443/#/c/12363/

Change-Id: Ib5ee29f1b30cff50d4c64f059259666a7618c090

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java