Update for ButtonSettings from CM [2/2]

Change-Id: I861243278dd52cd5d6e4acfc9cb49d26f8b5f42b

Conflicts:
	res/xml/system_settings.xml
Changes in settings checkBoxPreference

Eliminated CheckBoxPreferences in cyanogenmod Folder

Change-Id: Ia30c2d73c4277b11d1ca821a849c1bfed6db47c7
Add ability to change ringer mode from the lockscreen (part 2)

Settings app part of lockscreen target which is able to change ringer mode between
silent/vibration and normal

Framework part required: I8e95379ace8d20741fae3e298d742db7e77643d1

Change-Id: Icae1298e7a9d2847d1ec185cf160ba495bd45dba

Conflicts:

	res/values/cm_strings.xml
	src/com/android/settings/chameleonos/LockscreenTargets.java
Removed cyanogen SystemSettingCheckBoxPreference.java

SystemSettingCheckBoxPreference.java

Change-Id: I661953d19c2d06bdaec3827d44d69c096ea0338b