base: added camera flip activation for n1

Flipping camera will start camera app
both from offscreen and onscreen

This also adds a property that can force enable
DEBUG_INPUT since this can be extremely helpful
to enable without rebuilding

Activate with
config.override_debugInput=1

Change-Id: I3e67e5dc3df8b4d4f89daa6a8aad475f3794a37b
[2/2] Base: notification drawer: custom clock & calendar shortcut

OmniGears: https://gerrit.omnirom.org/#/c/4810/

PS9:
fix for multi-user

Change-Id: I941cdebde0b9d90c92f83df9e44f40bb4d4cce63
base: lockscreen rotation fix

You must not check the value of ACCELEROMETER_ROTATION here
cause this will be 0 also in the case of using 'rotation locked'
from quick settings

Change-Id: If610e86d1df6be1a60aa996450344c07f8266e5f
framework: update config_hardwareKeys comment for camera key

Change-Id: Ic9a22448c16428fc2f311ea813aa2ec5f27493db