ProximityWake : Add support for checking proximity when waking device

Change-Id: Ia5ff446d88435773acccc7467e66009000dc20cb
Framework : Fix proximity wakeup reference

Change-Id: Ia40ca6fbf6e37fbb3996f2384f725c30b88c2131
core: Fix permission string

Should always start with lowercase

Change-Id: I5ab97b8a6ca67c4d2460f606f09b4bed8c299401
SystemUI: fix hidden clock style after a reboot

Selecting hidden clock style and rebooting the device results
in both center and default clocks appearing when you'd expect
to see none.

mClockView is null after a reboot so visibility gets never set.
Set default visibility for clocks to gone.

Change-Id: I533af8c28042a5989e0025df133c9ccf1fa3e066
Filter spam notifications

Change-Id: Ibf2377cd7491c7e0e9e9c9657e9e65eef1876ee3
Merge remote-tracking branch 'upstream/cm-11.0' into cm-11.0