Improvement on tml to avatar

src/main/java/avatartranslator/AvatarBlock.java

src/main/java/tmltranslator/toavatar/FullTML2Avatar.java

src/main/java/tmltranslator/toavatar/FullTML2AvatarDP.java

src/main/java/ui/GTURTLEModeling.java

src/main/java/ui/avatarbd/AvatarBDBlock.java

src/main/java/ui/avatarbd/AvatarBDPortConnector.java

src/main/java/ui/tmlad/TMLActivityDiagramToolBar.java