Switch to java 1.7 in gradle build file
Merge branch 'master' of https://github.com/Daiwen/ludum-08-2014
Merge branch 'master' of https://github.com/Daiwen/ludum-08-2014
Merge branch 'master' of https://github.com/Daiwen/ludum-08-2014
Correct bug jump in invisible block + start music after launch screen