Travis-CI: Add Slack chat notifications
Travis-CI: Add Slack chat notifications

wrvangeest/jmonkeyengine,yetanotherindie/jMonkey-Engine,davidB/jmonkeyengine,zzuegg/jmonkeyengine,zzuegg/jmonkeyengine,GreenCubes/jmonkeyengine,aaronang/jmonkeyengine,bertleft/jmonkeyengine,atomixnmc/jmonkeyengine,OpenGrabeso/jmonkeyengine,sandervdo/jmonkeyengine,InShadow/jmonkeyengine,jMonkeyEngine/jmonkeyengine,phr00t/jmonkeyengine,yetanotherindie/jMonkey-Engine,danteinforno/jmonkeyengine,d235j/jmonkeyengine,delftsre/jmonkeyengine,amit2103/jmonkeyengine,amit2103/jmonkeyengine,phr00t/jmonkeyengine,bsmr-java/jmonkeyengine,tr0k/jmonkeyengine,skapi1992/jmonkeyengine,davidB/jmonkeyengine,skapi1992/jmonkeyengine,atomixnmc/jmonkeyengine,nickschot/jmonkeyengine,atomixnmc/jmonkeyengine,olafmaas/jmonkeyengine,olafmaas/jmonkeyengine,sandervdo/jmonkeyengine,aaronang/jmonkeyengine,nickschot/jmonkeyengine,rbottema/jmonkeyengine,yetanotherindie/jMonkey-Engine,shurun19851206/jMonkeyEngine,OpenGrabeso/jmonkeyengine,GreenCubes/jmonkeyengine,g-rocket/jmonkeyengine,zzuegg/jmonkeyengine,bertleft/jmonkeyengine,tr0k/jmonkeyengine,tr0k/jmonkeyengine,g-rocket/jmonkeyengine,weilichuang/jmonkeyengine,weilichuang/jmonkeyengine,aaronang/jmonkeyengine,shurun19851206/jMonkeyEngine,bertleft/jmonkeyengine,Georgeto/jmonkeyengine,davidB/jmonkeyengine,Georgeto/jmonkeyengine,olafmaas/jmonkeyengine,amit2103/jmonkeyengine,OpenGrabeso/jmonkeyengine,davidB/jmonkeyengine,OpenGrabeso/jmonkeyengine,Georgeto/jmonkeyengine,skapi1992/jmonkeyengine,nickschot/jmonkeyengine,bsmr-java/jmonkeyengine,sandervdo/jmonkeyengine,shurun19851206/jMonkeyEngine,Georgeto/jmonkeyengine,g-rocket/jmonkeyengine,d235j/jmonkeyengine,atomixnmc/jmonkeyengine,d235j/jmonkeyengine,delftsre/jmonkeyengine,jMonkeyEngine/jmonkeyengine,d235j/jmonkeyengine,amit2103/jmonkeyengine,bertleft/jmonkeyengine,g-rocket/jmonkeyengine,skapi1992/jmonkeyengine,weilichuang/jmonkeyengine,danteinforno/jmonkeyengine,bsmr-java/jmonkeyengine,weilichuang/jmonkeyengine,danteinforno/jmonkeyengine,OpenGrabeso/jmonkeyengine,atomixnmc/jmonkeyengine,weilichuang/jmonkeyengine,weilichuang/jmonkeyengine,InShadow/jmonkeyengine,sandervdo/jmonkeyengine,yetanotherindie/jMonkey-Engine,GreenCubes/jmonkeyengine,yetanotherindie/jMonkey-Engine,davidB/jmonkeyengine,phr00t/jmonkeyengine,g-rocket/jmonkeyengine,OpenGrabeso/jmonkeyengine,bsmr-java/jmonkeyengine,wrvangeest/jmonkeyengine,danteinforno/jmonkeyengine,InShadow/jmonkeyengine,mbenson/jmonkeyengine,shurun19851206/jMonkeyEngine,g-rocket/jmonkeyengine,delftsre/jmonkeyengine,davidB/jmonkeyengine,aaronang/jmonkeyengine,rbottema/jmonkeyengine,phr00t/jmonkeyengine,mbenson/jmonkeyengine,wrvangeest/jmonkeyengine,rbottema/jmonkeyengine,tr0k/jmonkeyengine,mbenson/jmonkeyengine,shurun19851206/jMonkeyEngine,jMonkeyEngine/jmonkeyengine,wrvangeest/jmonkeyengine,nickschot/jmonkeyengine,olafmaas/jmonkeyengine,delftsre/jmonkeyengine,atomixnmc/jmonkeyengine,danteinforno/jmonkeyengine,d235j/jmonkeyengine,rbottema/jmonkeyengine,jMonkeyEngine/jmonkeyengine,zzuegg/jmonkeyengine,amit2103/jmonkeyengine,Georgeto/jmonkeyengine,mbenson/jmonkeyengine,shurun19851206/jMonkeyEngine,d235j/jmonkeyengine,GreenCubes/jmonkeyengine,mbenson/jmonkeyengine,mbenson/jmonkeyengine,Georgeto/jmonkeyengine,yetanotherindie/jMonkey-Engine,danteinforno/jmonkeyengine,InShadow/jmonkeyengine,amit2103/jmonkeyengine