SystemUI: Clean up old H+ drawables causing issues on manta

These drawables seem to be adapted to fit the old combined
tablet status bar. They mistakenly gets used on manta with
an oversized H+ drawable as a result.

Change-Id: Iefc0e997e31508ea98f10e5b399ce6569a4a3a44
Allow applications to show the navigation bar in expanded desktop mode.

This is used by the settings app to show the navigation bar when editing
it.

Change-Id: Idc8fa5e49f31175dea603d7f1a1ef94ffab7249d
Merge "Allow applications to show the navigation bar in expanded desktop mode." into cm-10.1
Merge "SystemUI: Clean up old H+ drawables causing issues on manta" into cm-10.1
Merge branch 'cm-10.1' of git://github.com/CyanogenMod/android_frameworks_base into cm-10.1-n7

Conflicts:
	policy/src/com/android/internal/policy/impl/PhoneWindowManager.java