build: proper make clean target
build: proper make clean target

recursively call make clean for $subdirs
and call cleanup.sh script (nice if removed later)
and setup.py --clean (dtto)

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