Remove QuickBoot preference if package isn't available

Change-Id: I6f00b6be8d87c1013d2c695d93e66d276017b0a1
Merge branch 'cm-12.0' of https://github.com/CyanogenMod/android_packages_apps_Settings into lollipop

Conflicts:
	src/com/android/settings/DevelopmentSettings.java

Change-Id: I34b29eaf979929e0cdca72053063ed5858d0eb30
Signed-off-by: STELIX <ssspinni@gmail.com>