[WIP] Forward port Status Bar interface (1/2)

Signal / Clock / Notification Count
Change-Id: Iecd4bb06b95b14888916331f5d36327f3206aeef

Port "Fix display of mobile status bar icon when using airplane mode"
Change-Id: Icb5b33008f97eaefd67bb4e5acd1e38bcf2dcb70

Forward port from cm-10.2, adjusted for 4.4

Todo:
* Cleanup

Change-Id: Iecd4bb06b95b14888916331f5d36327f3206aeef
Add an option to enable battery percentage in the icon (1/2)

Make the disabled code to draw percentage in the icon configurable via
settings and modify the text paint to be transparent inside the icon.

Change-Id: Ie835812bb1b6a3680cca0a3864995acd0674082d
Added support for DC-HSPA+

Change-Id: I1503c464b2db841fc193e57311e62415f5ff40f2