Fix NullPointerException issue when user change

When info is null, we have risk to have access null point.

Change-Id: Ie6acee5c99d6297e31d46585435a735a38b19e82
make LinearColorBar themeable

Move colors to resources and use them instead.

Change-Id: I923e5daa219f302dc24e62faab666483109e6620
Signed-off-by: Dirk Rettschlag <dirk.rettschlag@gmail.com>

Conflicts:

	src/com/android/settings/applications/LinearColorBar.java
Consistently use start/end instead of left/right layout properties.

Fixes various RTL language bugs.

Change-Id: I3be9c9c54e4fd14a561f6b38ce1601bc66c8351b
Add missing mdpi, hdpi, xhdpi drawables for new theme engine

Change-Id: I70dd75257f0e3a0a20b844a1ea3cc36506de177b