Fullscreen UI when in Incoming call based on CM

Nice fix for current ugly look :)

https://plus.google.com/113686307509605640651/posts/PAXqqS6C2EB

PS2: Don't move with the ring, place colors in right file
PS3: readd changed colors

Change-Id: Ic7f80e8b320673e349b511f0845777a1eac5992c