Merge pull request #6 from cyrille-leclerc/master

clickstart description enhancement
Merge pull request #7 from cyrille-leclerc/master

Use Grails Wrapper
Update clickstart.json
Merge pull request #8 from cyrille-leclerc/master

Upgrade Grails to 2.2.2
Update Grails Wrapper to 2.2.2
Update mysql-connector to 5.1.25