[2/3] Flip to Mute/Reject Call

Call Settings - add menu entry

PS:
- fix not sticking entry

PS:
- correct idention from the whole xml file

PS:
- add a personal settings category to have the settings better sorted and splitted

Change-Id: Ic011c5b9e10439fc900b1302f7e07dde494b2e5b

Conflicts:
	res/values/slim_strings.xml
	res/xml/call_feature_setting.xml
	src/com/android/phone/CallFeaturesSetting.java