more switch sprites added and placed
Merge remote-tracking branch 'origin/master'

Conflicts:
	IntelliGrid/bin/res/crunch/drawable-xhdpi/transformernight.png
	IntelliGrid/bin/res/crunch/drawable-xhdpi/turbinenight.png
	IntelliGrid/res/drawable-xhdpi/switchbottomnight.png
	IntelliGrid/res/drawable-xhdpi/switchmiddlenight.png
	IntelliGrid/res/drawable-xhdpi/switchtopnight.png
	IntelliGrid/res/drawable-xhdpi/tieopen.png
	IntelliGrid/res/drawable-xhdpi/tieopennight.png
	IntelliGrid/res/drawable-xhdpi/transformer1night.png
	IntelliGrid/res/drawable-xhdpi/transformer2night.png
	IntelliGrid/src/org/sdsu/intelligrid/graphics/ui/MainUI.java
fault cases added to UI