Do not enable Traffic by default

- Add Status Icon Color support
Move broadcast actions from service to ProfileManager so all API is
there.

Change-Id: Ic8a8ad8f86f01864a30963457687f5be70e99ef4

Conflicts:

	packages/SystemUI/src/com/android/systemui/quicksettings/ProfileTile.java
	services/java/com/android/server/ProfileManagerService.java
Factor out profile trigger code into separate class.

Makes it easier to extend the trigger mechanism later on.

Change-Id: Ied318e7efa7e1755022deecb8172f862943ca6ac