UpdateFragment: reworked layout

Shows info on the current rom and gapps.
The lennon image has been reduced a little.
Don't merge before these other changes:
https://gerrit.paranoidandroid.co/#/c/3544/
https://gerrit.paranoidandroid.co/#/c/3545/
https://gerrit.paranoidandroid.co/#/c/3550/

PS2: Fix crash on rotation

Change-Id: I96ee7587b8961fd724279d3bbcdbe71c00970d42
Merge "UpdateFragment: reworked layout" into kitkat