Run elasticsearch in the background to not have log output in travis build
Run elasticsearch in the background to not have log output in travis build

falconavs/Elastica,im-denisenko/Elastica,piotrantosik/Elastica,giorrrgio/Elastica,sugarcrm/Elastica,pborreli/Elastica,stof/Elastica,Gasol/Elastica,miniplay/Elastica,webdevsHub/Elastica,eilgin/Elastica,Jmoati/Elastica,eilgin/Elastica,idio/elastica,falconavs/Elastica,fubuki/Elastica,Jmoati/Elastica,ewgRa/Elastica,revinate/Elastica,ebernhardson/Elastica,ruflin/Elastica,markeilander/Elastica,Southparkfan/Elastica,p365labs/Elastica,vlajos/Elastica,Mosoc/Elastica,webdevsHub/Elastica,miniplay/Elastica,revinate/Elastica,Tobion/Elastica,pborreli/Elastica,jeancsil/Elastica,kartikm/Elastica,giovannialbero1992/Elastica,tmatei/Elastica,vlajos/Elastica,im-denisenko/Elastica,Mosoc/Elastica,giovannialbero1992/Elastica,Tobion/Elastica,ARAMISAUTO/Elastica,fubuki/Elastica,p365labs/Elastica,0x46616c6b/Elastica,ewgRa/Elastica,idio/elastica,splitice/Elastica,Southparkfan/Elastica,ebernhardson/Elastica,JustinHook/Elastica,kartikm/Elastica,markeilander/Elastica,ARAMISAUTO/Elastica,jeancsil/Elastica,sugarcrm/Elastica,stof/Elastica,piotrantosik/Elastica,Gasol/Elastica,giorrrgio/Elastica,0x46616c6b/Elastica,tmatei/Elastica,JustinHook/Elastica