remove Pillow from requirements.txt as it was used for vision only
remove Pillow from requirements.txt as it was used for vision only

as PIL

scottpurdy/nupic,pulinagrawal/nupic,arhik/nupic,EricSB/nupic,jcasner/nupic,marionleborgne/nupic,subutai/nupic,breznak/nupic,fergalbyrne/nupic,numenta-ci/nupic,go-bears/nupic,numenta/nupic,cogmission/nupic,jcasner/nupic,cogmission/nupic,rhyolight/nupic,darshanthaker/nupic,numenta/nupic,lscheinkman/nupic,badlogicmanpreet/nupic,marionleborgne/nupic,breznak/nupic,vitaly-krugl/nupic,neuroidss/nupic,runt18/nupic,neuroidss/nupic,passiweinberger/nupic,jcasner/nupic,pap/nupic,BoltzmannBrain/nupic,blueburningcoder/nupic,pulinagrawal/nupic,rhyolight/nupic,BoltzmannBrain/nupic,ywcui1990/nupic,brev/nupic,markneville/nupic,darshanthaker/nupic,blueburningcoder/nupic,rcrowder/nupic,cogmission/nupic,arhik/nupic,passiweinberger/nupic,breznak/nupic,pap/nupic,subutai/nupic,EricSB/nupic,fergalbyrne/nupic,alfonsokim/nupic,EricSB/nupic,wanghaven/nupic,SaganBolliger/nupic,fergalbyrne/nupic,rcrowder/nupic,blueburningcoder/nupic,badlogicmanpreet/nupic,ywcui1990/nupic,markneville/nupic,marionleborgne/nupic,BoltzmannBrain/nupic,ywcui1990/nupic,sambitgaan/nupic,numenta-ci/nupic,passiweinberger/nupic,numenta-ci/nupic,runt18/nupic,SaganBolliger/nupic,SaganBolliger/nupic,go-bears/nupic,badlogicmanpreet/nupic,markneville/nupic,runt18/nupic,scottpurdy/nupic,darshanthaker/nupic,sambitgaan/nupic,arhik/nupic,brev/nupic,pap/nupic,pulinagrawal/nupic,neuroidss/nupic,wanghaven/nupic,sambitgaan/nupic,lscheinkman/nupic,alfonsokim/nupic,rcrowder/nupic,scottpurdy/nupic,numenta/nupic,alfonsokim/nupic,go-bears/nupic,lscheinkman/nupic,rhyolight/nupic,vitaly-krugl/nupic,brev/nupic,subutai/nupic,vitaly-krugl/nupic,wanghaven/nupic