Using the su class to execute commands as root

Signed-off-by: Umair Khan <omerjerk@gmail.com>
Merge branch 'ics' of github.com:omerjerk/android_packages_apps_Settings into omerjerk-ics

Conflicts:
	src/com/android/settings/cyanogenmod/SystemSettings.java
        ^Fixed it up, (my source to blame), added some logging too :)