Settings: Rename GPS tile to Location tile

* This tile no longer affects the GPS only but toggles other location modes too

Change-Id: Ic960aee08637520c6914bbfaa22f1d788ae67fc3
Settings: Heads Up background color && transparency [1/2]

Change-Id: I7a37f9d5a7c0e682b1f9670c3b839e3f063dc45c
PS12: squash dependency - heads up settings now under interface menu
PS: add ability to set custom heads up text color

also include this commit by @cristianomatos https://github.com/cristianomatos/android_packages_apps_Settings/commit/5b5a21ec85b52ae117cabd5656933fd898404296
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_packages_apps_Settings into android-4.4