Base: fix logic tinted system bar

1. fix action bar make statusbar icon changes with same color action bar text
       if current action bar background is null
2. move log into each bartransition so we can track what is changes
3. make process not changing system bar color
      if current screen color is same with before (less draw)
4. always reset system bar color when launching new apps
5. fix color changes using 3rd party app keyboard

Change-Id: If53178e24caae7dff30636eda440d0e618702e3e
media: Configure audio encode parameters only for valid audio codec.

Added extra check for audio codec in profile
(Cherrypicked from commit eed39d0053dee6649424867418e511b918b3c634)

(cherry picked from commit 81dfde16ffb3fc8f6b110a3df2921a3d3361db10)
(cherry picked from commit 8069457a313853247f2017237e29bcf3b3eb2323)
(cherry picked from commit db4bf86a6b50ce84b5a678476ee08c12f0fe272b)

Change-Id: Ice218fb6357e49d6bdba98224a990357a47e8d7a
base: Reduce total number of background apps for low memory devices

Due to memory constraints, we anyway cannot fit the default number
of BG apps. So instead of killing background apps to
free up memory when launching, start with an already
reduced background set of apps.

Another side-effect is that launch latencies also improve.
This change is for low memory devices. (512MB RAM or less)

Change-Id: I9de0cb1734c0a386fc47cde71723e5c16825f5a3
Merge pull request #1 from omnirom/android-4.4

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