Cleanup gitignore, add .gradle
Cleanup gitignore, add .gradle

Change-Id: I834b6190d302b9192e0ea0bdaed63572245aa528

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