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

Change-Id: Iecd4bb06b95b14888916331f5d36327f3206aeef