Remove OSX from build matrix.
Remove OSX from build matrix.

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