Fixed error in build.sh where exit status was getting overwritten by the echo command printing out the exit status.
Fixed error in build.sh where exit status was getting overwritten by the echo command printing out the exit status.

mcanthony/nupic,neuroidss/nupic,markneville/nupic,lscheinkman/nupic,SaganBolliger/nupic,glorizen/nupic,vitaly-krugl/nupic,loretoparisi/nupic,cogmission/nupic,brev/nupic,ywcui1990/nupic,rcrowder/nupic,jcasner/nupic,darshanthaker/nupic,mcanthony/nupic,akhilaananthram/nupic,BeiLuoShiMen/nupic,runt18/nupic,elkingtonmcb/nupic,blueburningcoder/nupic,brev/nupic,virneo/nupic,alfonsokim/nupic,badlogicmanpreet/nupic,lscheinkman/nupic,blueburningcoder/nupic,cogmission/nupic,eranchetz/nupic,numenta-ci/nupic,passiweinberger/nupic,BoltzmannBrain/nupic,numenta-ci/nupic,elkingtonmcb/nupic,breznak/nupic,numenta/nupic,brev/nupic,SaganBolliger/nupic,subutai/nupic,lscheinkman/nupic,runt18/nupic,runt18/nupic,EricSB/nupic,virneo/nupic,marionleborgne/nupic,wanghaven/nupic,pulinagrawal/nupic,pulinagrawal/nupic,rcrowder/nupic,markneville/nupic,marionleborgne/nupic,jcasner/nupic,markneville/nupic,akhilaananthram/nupic,rhyolight/nupic,breznak/nupic,marionleborgne/nupic,EricSB/nupic,vitaly-krugl/nupic,numenta/nupic,fergalbyrne/nupic,scottpurdy/nupic,rayNymous/nupic,allanino/nupic,ywcui1990/nupic,rhyolight/nupic,arhik/nupic,ben-hopps/nupic,darshanthaker/nupic,wanghaven/nupic,virneo/nupic,eranchetz/nupic,badlogicmanpreet/nupic,passiweinberger/nupic,alfonsokim/nupic,allanino/nupic,glorizen/nupic,alfonsokim/nupic,breznak/nupic,pap/nupic,ben-hopps/nupic,arhik/nupic,jcasner/nupic,numenta-ci/nupic,ben-hopps/nupic,rhyolight/nupic,BeiLuoShiMen/nupic,loretoparisi/nupic,cngo-github/nupic,pulinagrawal/nupic,go-bears/nupic,fergalbyrne/nupic,blueburningcoder/nupic,vamsirajendra/nupic,chen0031/nupic,pap/nupic,ywcui1990/nupic,go-bears/nupic,subutai/nupic,rcrowder/nupic,darshanthaker/nupic,chen0031/nupic,fergalbyrne/nupic,mcanthony/nupic,go-bears/nupic,SaganBolliger/nupic,scottpurdy/nupic,sambitgaan/nupic,rayNymous/nupic,neuroidss/nupic,pap/nupic,chanceraine/nupic,GeraldLoeffler/nupic,metaml/nupic,glorizen/nupic,allanino/nupic,loretoparisi/nupic,EricSB/nupic,subutai/nupic,chanceraine/nupic,wanghaven/nupic,cngo-github/nupic,arhik/nupic,GeraldLoeffler/nupic,vitaly-krugl/nupic,chen0031/nupic,neuroidss/nupic,BeiLuoShiMen/nupic,BoltzmannBrain/nupic,metaml/nupic,scottpurdy/nupic,metaml/nupic,passiweinberger/nupic,elkingtonmcb/nupic,numenta/nupic,badlogicmanpreet/nupic,akhilaananthram/nupic,sambitgaan/nupic,eranchetz/nupic,vamsirajendra/nupic,GeraldLoeffler/nupic,cngo-github/nupic,rayNymous/nupic,vamsirajendra/nupic,BoltzmannBrain/nupic,chanceraine/nupic,sambitgaan/nupic,cogmission/nupic