add 'distribute' to default skip list for installed dists
add 'distribute' to default skip list for installed dists

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