Construct graph
Merge remote-tracking branch 'origin/master'

Conflicts:
	src/com/elvis/visualfsm/controller/DesignerController.java
	src/com/elvis/visualfsm/controller/handler/GraphEditHandler.java
	src/com/elvis/visualfsm/model/FragmentClassGraphVertex.java
Merge remote-tracking branch 'origin/master'
change arrow handler