[1/2] Base: Disable safe headset volume warning

Settings: https://gerrit.omnirom.org/#/c/5203/

PS7
adjust defaut value

Change-Id: I83e2f180a872ccdec99ef44c4455f6173da340cc
merge changes from Omni 4.4 into local branch
Lockscreen Notifications: Custom background color [1/2]

Change-Id: Id5f950a0f6e526b46c0662d14a1b8ca664c0b4f8
Lockscreen Notifications: try to fix occasionally SystemUI FC on boot