synchronize updateStringCache on mAccessLock

Resources.java used to synchronize on mTmpValue but has since
switched to mAccessLock. mTmpValue can be null in some instances
causing a NPE during a theme change.

Change-Id: I7411dfdf6e8e411381ae993872a3c740dad19300
Merge "synchronize updateStringCache on mAccessLock" into cm-11.0
sync status bar transparency state on theme change

When the status bar view is reinflated its transparency mode is
reset back to opaque. This can be observed by changing a theme
and switching to home in the middle of a switch.

Change-Id: I3049c5f24cc6c46dcefb24188039a08503db09a9
Theme special volumeup+down volume panel

When you press vol up + vol down button it brings up a
different volume panel which was not getting themed because
it lacked the ui context.

Change-Id: I416b8920160c0ab263fd426a6e6491d1f877a905
Merge remote-tracking branch 'cm/cm-11.0' into cm-11.0