Fixes to src and build dir locations
Fixes to src and build dir locations

Moved src_dir back to cwd for now. build_dir is still created in the
system's temporary dir (tempfile.gettempdir()), but always as
"pip-build".

benesch/pip,zorosteven/pip,yati-sagade/pip,benesch/pip,natefoo/pip,blarghmatey/pip,jmagnusson/pip,Carreau/pip,mattrobenolt/pip,davidovich/pip,wkeyword/pip,rbtcollins/pip,graingert/pip,zenlambda/pip,wkeyword/pip,mujiansu/pip,techtonik/pip,techtonik/pip,graingert/pip,mindw/pip,mattrobenolt/pip,mindw/pip,chaoallsome/pip,Gabriel439/pip,esc/pip,tdsmith/pip,haridsv/pip,jythontools/pip,caosmo/pip,rbtcollins/pip,jasonkying/pip,zvezdan/pip,sigmavirus24/pip,KarelJakubec/pip,KarelJakubec/pip,prasaianooz/pip,ChristopherHogan/pip,ncoghlan/pip,davidovich/pip,h4ck3rm1k3/pip,Ivoz/pip,squidsoup/pip,pjdelport/pip,zvezdan/pip,radiosilence/pip,pjdelport/pip,Gabriel439/pip,cjerdonek/pip,rouge8/pip,zenlambda/pip,dstufft/pip,yati-sagade/pip,jamezpolley/pip,msabramo/pip,caosmo/pip,nthall/pip,alex/pip,mujiansu/pip,habnabit/pip,mindw/pip,graingert/pip,rouge8/pip,natefoo/pip,erikrose/pip,willingc/pip,esc/pip,James-Firth/pip,James-Firth/pip,xavfernandez/pip,natefoo/pip,pradyunsg/pip,supriyantomaftuh/pip,jmagnusson/pip,sigmavirus24/pip,pfmoore/pip,jythontools/pip,James-Firth/pip,haridsv/pip,supriyantomaftuh/pip,willingc/pip,luzfcb/pip,pradyunsg/pip,prasaianooz/pip,luzfcb/pip,alquerci/pip,blarghmatey/pip,qbdsoft/pip,ChristopherHogan/pip,alex/pip,chaoallsome/pip,ianw/pip,chaoallsome/pip,benesch/pip,sbidoul/pip,qbdsoft/pip,caosmo/pip,xavfernandez/pip,davidovich/pip,RonnyPfannschmidt/pip,RonnyPfannschmidt/pip,patricklaw/pip,fiber-space/pip,squidsoup/pip,rbtcollins/pip,jasonkying/pip,minrk/pip,jasonkying/pip,wkeyword/pip,atdaemon/pip,pjdelport/pip,zenlambda/pip,pypa/pip,jythontools/pip,fiber-space/pip,qbdsoft/pip,pfmoore/pip,domenkozar/pip,ncoghlan/pip,qwcode/pip,erikrose/pip,nthall/pip,tdsmith/pip,msabramo/pip,Carreau/pip,jmagnusson/pip,blarghmatey/pip,alquerci/pip,h4ck3rm1k3/pip,minrk/pip,ianw/pip,ncoghlan/pip,techtonik/pip,dstufft/pip,erikrose/pip,h4ck3rm1k3/pip,rouge8/pip,fiber-space/pip,mujiansu/pip,RonnyPfannschmidt/pip,supriyantomaftuh/pip,willingc/pip,squidsoup/pip,zorosteven/pip,harrisonfeng/pip,zorosteven/pip,jamezpolley/pip,luzfcb/pip,atdaemon/pip,nthall/pip,Ivoz/pip,pypa/pip,yati-sagade/pip,dstufft/pip,sigmavirus24/pip,patricklaw/pip,ChristopherHogan/pip,harrisonfeng/pip,jamezpolley/pip,KarelJakubec/pip,prasaianooz/pip,zvezdan/pip,sbidoul/pip,harrisonfeng/pip,haridsv/pip,habnabit/pip,tdsmith/pip,atdaemon/pip,qwcode/pip,Gabriel439/pip,alex/pip,xavfernandez/pip,esc/pip,cjerdonek/pip,habnabit/pip