[2/2] base: Set AdvancedReboot to be enabled by default
RE: http://jira.omnirom.org/browse/OMNI-1

Because I am a dufus

Edit 9001: Setting this to be enabled by default for all users

Change-Id: Icd2c10ffd20c172374c51f300912b5c710f73bf8
Merge "[2/2] base: Set AdvancedReboot to be enabled by default RE: http://jira.omnirom.org/browse/OMNI-1" into android-4.4
SystemUI: Fix notification header disappearing on tablets

For some reason, the notification panel header has weird dimensions
when it has anything else than its original ColorDrawable as
background, and only on tablets.

We workaround this by not changing the drawable until requested.

Change-Id: Id76a5dcacf59c35b2e49681d6eeb4e828f7cbc58
merge changes from Omni 4.4 into local branch