fixed the doc string in inferBacktrack
fixed the doc string in inferBacktrack

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