Fix navbar editor for RTL layouts.

Remove navigation bar layout XML override which wasn't needed anyway, as
the views in mid_navigation_bar are already reordered based on the
layout direction anyway.

Change-Id: Id57c781d9580fa0cb2eab3bb332daf4136bec321
JIRA:CYAN-2557
frameworks/base: vectorize Bitmap operations

Enable gcc vectorizing optimizations for Bitmap operations within
libandroid_runtime.so.  Adds -ftree-vectorize -mvectorize-with-neon-quad
-fprefetch-loop-arrays to functions and compiles Bitmap.cpp in ARM mode
(necessary to enable vectorizing optimizations) for appropriate targets.

Change-Id: If52a789b6f592b137e64e85077665c9ce5957f79

Conflicts:

	core/jni/Android.mk
Bring back the status bar activity indicators for mobile data and wifi

* adds a setting for this as well as reverting the following commit:

Reverts "Remove signal/wifi activity indicator icon overlays."

This reverts commit fcc901c10bffdfb9c6b31e676dec36b47d949979.

Change-Id: I7aa85f7c8442c45d17e42cac7823dfe93e3f24c1
Quella maledettissima e...XD
Italian translations