merge from mainline
merge from mainline

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