base: layout circle battery percent really in the center

There is no need to use strokeWidth in this layout calculation

Change-Id: I68471c5f63b49e815f305bc3d5bd86b67afeb647
base: ActiveDisplay: fix for disappearing notification bar

What a derp
http://jira.omnirom.org/browse/OMNI-158
http://jira.omnirom.org/browse/OMNI-101

PS2
dont do it on secure lockscreens

PS4
check if lookscreen is enabled

Change-Id: Idf7fd7c15fcd87e2efb62f0a234e15f1df1921e8
fix for screenshot animation glitch in portrait

edits by Stefano Semeraro aka Suxsem.

Change-Id: I7a03a24c5b1bfdfe616f940b2bd7be42091f45a6
Properly handle null URIs.

Change-Id: Ib81044686f40284bacf6ee645c671679f62be843
JIRA:CYAN-2491