numpy: update to the latest stable version
numpy: update to the latest stable version

from 1.6.2 -> 1.7.1
release notes http://sourceforge.net/projects/numpy/files/NumPy/1.7.0/

Conflicts:
	external/common/requirements.txt

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