AwesomeAction: move recents key handling to keybutton view

Improves recents button response time.

PS2: make statusbarservice a singleton to lessen GC churn
PS3: add preloading and cleanup

Change-Id: I3172d9fc9641b7a643ca88858e5f2aa0b6aa2693
Merge "AwesomeAction: move recents key handling to keybutton view" into kk44