Only show ART information if switching from dalvik to ART

We do not want to confuse users with a big information dialog, if
they change from ART to dalvik as dalvik is still the official
solution, supported and considered safe.

Change-Id: I0ce4846e0bb751e87e5c410e668d4bc521380141
Merge "Only show ART information if switching from dalvik to ART" into cm-11.0
Add CM Legal (2 of 2)

New settings activity for CM Legal info. Needs vendor/cm piece.

PS2: Manual Rebase

Change-Id: I6238afe23f957a571d29c186447b455ecb7a186e
Merge remote-tracking branch 'upstream/cm-11.0' into HEAD

Conflicts:
	res/values/cm_strings.xml

Change-Id: I5b5a7dd83f5710ce0b6d6537dfcc80293b3959e0