merge in jb-mr1-factory-release history after reset to jb-mr1-dev
merge in jb-mr1-factory-release history after reset to jb-mr1-dev
Reconcile with jb-mr1-factory-release jb-mr1-release - do not merge

Change-Id: Ibadcd642e060d8b828b13f7c748f0dfddf751906
Fix HWC documentation.

Specify more clearly the behavior of compositionType
and hints.

Change-Id: I9abdccedd904b2fba783381bf9e2f8975ede8d67
Merge tag 'android-4.2.2_r1' of https://android.googlesource.com/platform/hardware/libhardware into HEAD

Android 4.2.2 release 1