Update version to 0.3.1-SNAPSHOT
Merge remote-tracking branch 'origin/master' into dev

Conflicts:
	pom.xml
Add setVisible method to Element

Add setVisible method to Element.
Make visible and hidden method deprecated.
Modify JUnit dependency
Rename Graph package to Chart.
Rename Graph package to Chart
Add GraphicsUtil class
Modify pom.xml
Update dev version to 0.3.2-SNAPSHOT
Add UI classes
add dashedLine function
Merge branch 'dev' of github.com:casmi/casmi into dev
Merge branch 'dev' of github.com:casmi/casmi into dev
Fix a bug about setFPS
Modify pom.xml to use maven central repository for jsonic
Modify to use jogl v2.0-rc11 at maven central repository
Remove Cron class
Remove sound package
Fix readme
Remove Eclipse invisible files