[TEMP] Volume button custom actions
- Only settings part. Frameworks already have it.

Change-Id: I79e658a927ab0ff286aa4cef6303d27700ea6bf5
Fix in last commit
Merge branch 'cm-4.4' of https://github.com/cristianomatos/android_packages_apps_Settings into cm-11.0

Conflicts:
	res/values/cr_strings.xml