[2/2]Settings: Option to hide Adb notification icon

Base: https://gerrit.omnirom.org/#/c/2934/

Change-Id: I3ac5f08a077e04dade4bdeed58442043a8fb5d23
Settings: add development animation transition mode 0.75 and 0.25

Change-Id: Iaaeb3757ef9b3b97d66d929629e9035ab511f72a
Settings: Remove System updates

Since this has no use, it's better to
remove it.

Change-Id: I52e8284d9c9f8ac2e76da7cbacb6a0d5dd00a4ff
Merge "Settings: add development animation transition mode 0.75 and 0.25" into android-4.4
Merge "Settings: Remove System updates" into android-4.4
merge changes from Omni 4.4 into local branch