[2/2] OmniSwitch: fix OmniSwitch recents integration for multi-user

listen to user changes and broadcast the user id
with service start/stop

Change-Id: I598441c1040bcc133d2b8eaa37398154f84795f4
Merge branch 'android-4.4' of https://github.com/omnirom/android_packages_apps_OmniSwitch into android-4.4

Conflicts:
	src/org/omnirom/omniswitch/SwitchService.java