Correcting NULL pointer when callerApp is not set

Change-Id: Ia6570f428141de32d564dd190bbcf93a5d640fd1
JIRA: CYAN-2458
Issue: https://jira.cyanogenmod.org/browse/CYAN-2458
DeviceKeyHandler : Allow handling keyevents while screen off

Some devices require the keyevents to be processed while the screen
is off, this patchset addresses that by moving the filter up in the call
hierarchy.

Change-Id: If71beecc81aa5e453dcd08aba72b7bea5c210590
Fix removal of dock battery views in PhoneStatusBar

removeView is not recursive. Find and remove the dock views from their
direct parent. Fixes inconsistent paddings/margins with the wi-fi
indicator on tablets.

Change-Id: I56745059aaf84b1e52b6a4fd8806481beae0daff
Fix misspelled comment

Change-Id: Id13737b3a40eeee70ec0816aebe551d34ce89691
Merge "Correcting NULL pointer when callerApp is not set" into cm-10.2
Merge changes Id13737b3,I56745059 into cm-10.2

* changes:
  Fix misspelled comment
  Fix removal of dock battery views in PhoneStatusBar
Merge "DeviceKeyHandler : Allow handling keyevents while screen off" into cm-10.2
Merge remote-tracking branch 'upstream/cm-10.2' into cm-10.2