SignalCluster: added option for using Lollipop signal icons
With support for MediaTek Gemini
Adjusted for jellybean purposes (partially/fully connected state)
Conflicts:
	res/xml/gravitybox.xml
	src/com/ceco/gm2/gravitybox/GravityBoxSettings.java
	src/com/ceco/kitkat/gravitybox/StatusbarSignalCluster.java