systemui: SignalClusterTextView fixes and optimizations

- Optimize the SignalClusterTextView layout, but removing an unnecessary LinearLayout hierarchy
- Optimize the SignalClusterTextView view by hidding the entire view instead the cluster view
- Set start visibility of SignalClusterTextView to gone and update its state in onAttachToWindow
event. This should prevents bug CYAN-4410.
- Prevents NPE in MSIM devices when TEXT style mode is configured for the signal cluster style

Change-Id: Ib91fde693d5013bf058f161cc175923913fdfb7d
JIRA: CYAN-4410
Issue: https://jira.cyanogenmod.org/browse/CYAN-4410
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>
Revert "Send broadcast when package is 'about' to be removed"

This reverts commit 238e80a5c7edcb922ce15feebec74ea2475c31cb.
This was a band-aid that is being fixed in a future commit.

Change-Id: I89a928e2fd9cff2b1992a6e85eb5c96c5b8b9b0e
Themes: Update LoadedApk resources.

Instead of creating a new LoadedApk when resources are not up to
date, we use the existing LoadedApk but recreate mResources.

Change-Id: Ic1ad810863d03c2cedc751c9e84dd7c954daf3d7
PhoneStatusBar: Readd headsup view when theme change occurs.

Change-Id: I5bbfa56650a1b2f9cd9c4365650f769bed009ab0
Merge "systemui: SignalClusterTextView fixes and optimizations" into cm-11.0
Merge "Revert "Send broadcast when package is 'about' to be removed"" into cm-11.0
Merge "Themes: Update LoadedApk resources." into cm-11.0
Merge "PhoneStatusBar: Readd headsup view when theme change occurs." into cm-11.0
Merge remote-tracking branch 'cm/cm-11.0' into cm-11.0