Camera: Don't try to set focus/metering areas when none exist

Avoid calling the set methods when the areas are null, this causes
issues with some camera HALs

Change-Id: Iea6efbe113e1c87f22c891bf8a9cd47bc2c1cb22
Camera: Do not start autofocus when snapshot is in progress.

(cherry picked from commit 9fbccbe5bad2249e13a86581ecbd1e68810a0e90)

Change-Id: Id28c90b43ce33702d9c421e9a3b19d4502b77609
Danish: Camera ISO modes

Change-Id: I031a7a998650a916112afd22b7e2316f0a8fffdc
Camera: Updated italian translation

	Added missing strings for new focus, scene, iso filters

Change-Id: I39fe55521fcb9da0e93f2b446b54288da180b42c