Set explicitely source and target compatibility to Java 7
Set explicitely source and target compatibility to Java 7

paraita/scheduling,laurianed/scheduling,ShatalovYaroslav/scheduling,paraita/scheduling,jrochas/scheduling,sandrineBeauche/scheduling,ow2-proactive/scheduling,yinan-liu/scheduling,tobwiens/scheduling,paraita/scheduling,marcocast/scheduling,lpellegr/scheduling,sgRomaric/scheduling,fviale/scheduling,sandrineBeauche/scheduling,zeineb/scheduling,mbenguig/scheduling,ow2-proactive/scheduling,sandrineBeauche/scheduling,ShatalovYaroslav/scheduling,marcocast/scheduling,zeineb/scheduling,ShatalovYaroslav/scheduling,sgRomaric/scheduling,tobwiens/scheduling,laurianed/scheduling,fviale/scheduling,zeineb/scheduling,yinan-liu/scheduling,laurianed/scheduling,mbenguig/scheduling,yinan-liu/scheduling,mbenguig/scheduling,yinan-liu/scheduling,lpellegr/scheduling,tobwiens/scheduling,sandrineBeauche/scheduling,ShatalovYaroslav/scheduling,sandrineBeauche/scheduling,lpellegr/scheduling,ow2-proactive/scheduling,jrochas/scheduling,ShatalovYaroslav/scheduling,lpellegr/scheduling,tobwiens/scheduling,jrochas/scheduling,paraita/scheduling,ShatalovYaroslav/scheduling,ShatalovYaroslav/scheduling,fviale/scheduling,laurianed/scheduling,laurianed/scheduling,yinan-liu/scheduling,ow2-proactive/scheduling,yinan-liu/scheduling,fviale/scheduling,tobwiens/scheduling,paraita/scheduling,ow2-proactive/scheduling,jrochas/scheduling,jrochas/scheduling,marcocast/scheduling,zeineb/scheduling,sgRomaric/scheduling,sgRomaric/scheduling,zeineb/scheduling,mbenguig/scheduling,laurianed/scheduling,jrochas/scheduling,marcocast/scheduling,tobwiens/scheduling,marcocast/scheduling,tobwiens/scheduling,paraita/scheduling,fviale/scheduling,jrochas/scheduling,paraita/scheduling,marcocast/scheduling,mbenguig/scheduling,mbenguig/scheduling,sandrineBeauche/scheduling,yinan-liu/scheduling,lpellegr/scheduling,fviale/scheduling,sgRomaric/scheduling,sandrineBeauche/scheduling,zeineb/scheduling,ow2-proactive/scheduling,fviale/scheduling,sgRomaric/scheduling,lpellegr/scheduling,ow2-proactive/scheduling,lpellegr/scheduling,laurianed/scheduling,sgRomaric/scheduling,mbenguig/scheduling,zeineb/scheduling,marcocast/scheduling