TST: switch from Rackspace wheelhouse to numpy/cython source installs.
TST: switch from Rackspace wheelhouse to numpy/cython source installs.

The Wheelhouse seems to have frequent connectivity issues, and
building Numpy and Cython only takes a couple of minutes.

See gh-3883.

zxsted/scipy,Newman101/scipy,ales-erjavec/scipy,anntzer/scipy,mingwpy/scipy,nonhermitian/scipy,bkendzior/scipy,felipebetancur/scipy,surhudm/scipy,giorgiop/scipy,hainm/scipy,sauliusl/scipy,lukauskas/scipy,cpaulik/scipy,trankmichael/scipy,mgaitan/scipy,raoulbq/scipy,mdhaber/scipy,zerothi/scipy,zerothi/scipy,pschella/scipy,jakevdp/scipy,Kamp9/scipy,mikebenfield/scipy,jonycgn/scipy,mtrbean/scipy,vigna/scipy,pnedunuri/scipy,dch312/scipy,gdooper/scipy,matthewalbani/scipy,ilayn/scipy,WillieMaddox/scipy,piyush0609/scipy,hainm/scipy,Stefan-Endres/scipy,richardotis/scipy,kleskjr/scipy,chatcannon/scipy,fredrikw/scipy,ortylp/scipy,woodscn/scipy,minhlongdo/scipy,apbard/scipy,e-q/scipy,pnedunuri/scipy,efiring/scipy,aarchiba/scipy,FRidh/scipy,sriki18/scipy,pyramania/scipy,sriki18/scipy,vberaudi/scipy,sauliusl/scipy,andyfaff/scipy,arokem/scipy,endolith/scipy,FRidh/scipy,matthew-brett/scipy,zaxliu/scipy,gfyoung/scipy,josephcslater/scipy,mhogg/scipy,newemailjdm/scipy,mortada/scipy,Kamp9/scipy,giorgiop/scipy,sauliusl/scipy,WillieMaddox/scipy,rmcgibbo/scipy,futurulus/scipy,Srisai85/scipy,Newman101/scipy,ilayn/scipy,josephcslater/scipy,jjhelmus/scipy,grlee77/scipy,andyfaff/scipy,gdooper/scipy,aeklant/scipy,felipebetancur/scipy,sonnyhu/scipy,vhaasteren/scipy,Shaswat27/scipy,e-q/scipy,andim/scipy,arokem/scipy,cpaulik/scipy,jjhelmus/scipy,zxsted/scipy,haudren/scipy,FRidh/scipy,kalvdans/scipy,newemailjdm/scipy,matthewalbani/scipy,ndchorley/scipy,newemailjdm/scipy,sriki18/scipy,befelix/scipy,mhogg/scipy,bkendzior/scipy,ndchorley/scipy,ortylp/scipy,nonhermitian/scipy,surhudm/scipy,endolith/scipy,josephcslater/scipy,WillieMaddox/scipy,fernand/scipy,WarrenWeckesser/scipy,anntzer/scipy,ales-erjavec/scipy,raoulbq/scipy,vberaudi/scipy,haudren/scipy,aeklant/scipy,aman-iitj/scipy,Srisai85/scipy,anielsen001/scipy,jsilter/scipy,Eric89GXL/scipy,Eric89GXL/scipy,niknow/scipy,jjhelmus/scipy,mtrbean/scipy,mgaitan/scipy,raoulbq/scipy,sonnyhu/scipy,matthewalbani/scipy,vanpact/scipy,trankmichael/scipy,piyush0609/scipy,richardotis/scipy,apbard/scipy,surhudm/scipy,zxsted/scipy,nvoron23/scipy,argriffing/scipy,mortonjt/scipy,woodscn/scipy,Newman101/scipy,fernand/scipy,andyfaff/scipy,ilayn/scipy,FRidh/scipy,dominicelse/scipy,felipebetancur/scipy,pizzathief/scipy,apbard/scipy,andyfaff/scipy,nvoron23/scipy,tylerjereddy/scipy,mdhaber/scipy,larsmans/scipy,minhlongdo/scipy,lhilt/scipy,richardotis/scipy,pbrod/scipy,chatcannon/scipy,mortonjt/scipy,niknow/scipy,aeklant/scipy,andim/scipy,anielsen001/scipy,ales-erjavec/scipy,futurulus/scipy,chatcannon/scipy,person142/scipy,ndchorley/scipy,pbrod/scipy,haudren/scipy,rgommers/scipy,tylerjereddy/scipy,vigna/scipy,andim/scipy,jonycgn/scipy,nonhermitian/scipy,mtrbean/scipy,person142/scipy,lhilt/scipy,jsilter/scipy,Kamp9/scipy,jamestwebber/scipy,gfyoung/scipy,Dapid/scipy,mgaitan/scipy,jonycgn/scipy,rgommers/scipy,woodscn/scipy,ilayn/scipy,gertingold/scipy,pyramania/scipy,njwilson23/scipy,mtrbean/scipy,pschella/scipy,Shaswat27/scipy,aman-iitj/scipy,mhogg/scipy,mortada/scipy,behzadnouri/scipy,scipy/scipy,arokem/scipy,e-q/scipy,pyramania/scipy,pyramania/scipy,Srisai85/scipy,aarchiba/scipy,Stefan-Endres/scipy,vberaudi/scipy,maciejkula/scipy,Gillu13/scipy,lukauskas/scipy,andim/scipy,perimosocordiae/scipy,andim/scipy,trankmichael/scipy,ales-erjavec/scipy,Shaswat27/scipy,mikebenfield/scipy,nonhermitian/scipy,Dapid/scipy,endolith/scipy,mikebenfield/scipy,gertingold/scipy,jamestwebber/scipy,felipebetancur/scipy,petebachant/scipy,mdhaber/scipy,matthew-brett/scipy,pbrod/scipy,newemailjdm/scipy,kleskjr/scipy,giorgiop/scipy,aarchiba/scipy,trankmichael/scipy,raoulbq/scipy,FRidh/scipy,niknow/scipy,piyush0609/scipy,Shaswat27/scipy,nvoron23/scipy,vanpact/scipy,petebachant/scipy,efiring/scipy,trankmichael/scipy,dominicelse/scipy,witcxc/scipy,vanpact/scipy,zaxliu/scipy,vberaudi/scipy,endolith/scipy,zerothi/scipy,matthewalbani/scipy,gdooper/scipy,rmcgibbo/scipy,jor-/scipy,gef756/scipy,woodscn/scipy,tylerjereddy/scipy,jsilter/scipy,mortada/scipy,matthew-brett/scipy,fernand/scipy,ndchorley/scipy,matthew-brett/scipy,niknow/scipy,jjhelmus/scipy,ndchorley/scipy,lukauskas/scipy,Kamp9/scipy,jonycgn/scipy,anntzer/scipy,Srisai85/scipy,endolith/scipy,ChanderG/scipy,nmayorov/scipy,vanpact/scipy,kalvdans/scipy,anntzer/scipy,jseabold/scipy,richardotis/scipy,rgommers/scipy,kleskjr/scipy,mortada/scipy,sonnyhu/scipy,jamestwebber/scipy,mtrbean/scipy,andim/scipy,nonhermitian/scipy,mingwpy/scipy,scipy/scipy,futurulus/scipy,vhaasteren/scipy,aarchiba/scipy,kalvdans/scipy,ales-erjavec/scipy,mhogg/scipy,person142/scipy,fredrikw/scipy,hainm/scipy,dch312/scipy,njwilson23/scipy,jor-/scipy,behzadnouri/scipy,gertingold/scipy,e-q/scipy,fredrikw/scipy,maniteja123/scipy,larsmans/scipy,fernand/scipy,vanpact/scipy,dch312/scipy,mdhaber/scipy,ChanderG/scipy,trankmichael/scipy,mortonjt/scipy,Srisai85/scipy,sriki18/scipy,vhaasteren/scipy,fernand/scipy,pizzathief/scipy,gfyoung/scipy,bkendzior/scipy,ilayn/scipy,scipy/scipy,piyush0609/scipy,fredrikw/scipy,maciejkula/scipy,jseabold/scipy,scipy/scipy,grlee77/scipy,ortylp/scipy,efiring/scipy,jamestwebber/scipy,grlee77/scipy,nmayorov/scipy,maciejkula/scipy,cpaulik/scipy,pschella/scipy,rmcgibbo/scipy,Shaswat27/scipy,Gillu13/scipy,mikebenfield/scipy,mortada/scipy,jjhelmus/scipy,zaxliu/scipy,pschella/scipy,chatcannon/scipy,anntzer/scipy,minhlongdo/scipy,vberaudi/scipy,bkendzior/scipy,befelix/scipy,jakevdp/scipy,aeklant/scipy,argriffing/scipy,piyush0609/scipy,zaxliu/scipy,Newman101/scipy,hainm/scipy,newemailjdm/scipy,sriki18/scipy,hainm/scipy,Gillu13/scipy,perimosocordiae/scipy,dch312/scipy,andyfaff/scipy,mgaitan/scipy,lhilt/scipy,Eric89GXL/scipy,fredrikw/scipy,maniteja123/scipy,Newman101/scipy,bkendzior/scipy,Dapid/scipy,pbrod/scipy,Eric89GXL/scipy,giorgiop/scipy,fredrikw/scipy,efiring/scipy,newemailjdm/scipy,befelix/scipy,WarrenWeckesser/scipy,matthew-brett/scipy,gdooper/scipy,giorgiop/scipy,njwilson23/scipy,sauliusl/scipy,dominicelse/scipy,scipy/scipy,chatcannon/scipy,aman-iitj/scipy,rgommers/scipy,rgommers/scipy,rmcgibbo/scipy,Dapid/scipy,futurulus/scipy,surhudm/scipy,vhaasteren/scipy,Gillu13/scipy,sauliusl/scipy,tylerjereddy/scipy,FRidh/scipy,Gillu13/scipy,apbard/scipy,anielsen001/scipy,zaxliu/scipy,kleskjr/scipy,mhogg/scipy,grlee77/scipy,mortonjt/scipy,kalvdans/scipy,jseabold/scipy,dch312/scipy,ortylp/scipy,vhaasteren/scipy,woodscn/scipy,maciejkula/scipy,scipy/scipy,befelix/scipy,pbrod/scipy,WarrenWeckesser/scipy,ChanderG/scipy,larsmans/scipy,pnedunuri/scipy,mgaitan/scipy,pizzathief/scipy,efiring/scipy,felipebetancur/scipy,Stefan-Endres/scipy,mingwpy/scipy,Stefan-Endres/scipy,zerothi/scipy,mortonjt/scipy,ortylp/scipy,mortada/scipy,mhogg/scipy,zxsted/scipy,gef756/scipy,niknow/scipy,chatcannon/scipy,sonnyhu/scipy,haudren/scipy,jonycgn/scipy,Stefan-Endres/scipy,mgaitan/scipy,gertingold/scipy,njwilson23/scipy,minhlongdo/scipy,giorgiop/scipy,gef756/scipy,petebachant/scipy,zerothi/scipy,njwilson23/scipy,nvoron23/scipy,josephcslater/scipy,jonycgn/scipy,nmayorov/scipy,gef756/scipy,pschella/scipy,larsmans/scipy,maniteja123/scipy,richardotis/scipy,WarrenWeckesser/scipy,maciejkula/scipy,argriffing/scipy,vigna/scipy,anielsen001/scipy,aman-iitj/scipy,sauliusl/scipy,ndchorley/scipy,jakevdp/scipy,cpaulik/scipy,haudren/scipy,surhudm/scipy,aeklant/scipy,nmayorov/scipy,mingwpy/scipy,WillieMaddox/scipy,vigna/scipy,raoulbq/scipy,hainm/scipy,maniteja123/scipy,pnedunuri/scipy,mingwpy/scipy,lukauskas/scipy,behzadnouri/scipy,anielsen001/scipy,jseabold/scipy,witcxc/scipy,gfyoung/scipy,arokem/scipy,niknow/scipy,ortylp/scipy,Stefan-Endres/scipy,Dapid/scipy,nvoron23/scipy,jsilter/scipy,jseabold/scipy,vhaasteren/scipy,behzadnouri/scipy,gfyoung/scipy,petebachant/scipy,sriki18/scipy,zerothi/scipy,Shaswat27/scipy,zaxliu/scipy,matthewalbani/scipy,sonnyhu/scipy,WillieMaddox/scipy,argriffing/scipy,e-q/scipy,futurulus/scipy,gdooper/scipy,jamestwebber/scipy,kleskjr/scipy,pnedunuri/scipy,anntzer/scipy,WarrenWeckesser/scipy,kleskjr/scipy,Newman101/scipy,ilayn/scipy,aarchiba/scipy,fernand/scipy,perimosocordiae/scipy,pbrod/scipy,Kamp9/scipy,vanpact/scipy,pyramania/scipy,petebachant/scipy,andyfaff/scipy,ChanderG/scipy,mortonjt/scipy,befelix/scipy,mingwpy/scipy,witcxc/scipy,perimosocordiae/scipy,vigna/scipy,raoulbq/scipy,jor-/scipy,maniteja123/scipy,Eric89GXL/scipy,endolith/scipy,jsilter/scipy,jor-/scipy,vberaudi/scipy,gef756/scipy,mdhaber/scipy,larsmans/scipy,larsmans/scipy,njwilson23/scipy,Srisai85/scipy,perimosocordiae/scipy,Dapid/scipy,pizzathief/scipy,WarrenWeckesser/scipy,cpaulik/scipy,perimosocordiae/scipy,jakevdp/scipy,grlee77/scipy,ChanderG/scipy,lukauskas/scipy,mikebenfield/scipy,woodscn/scipy,nmayorov/scipy,piyush0609/scipy,gertingold/scipy,josephcslater/scipy,witcxc/scipy,nvoron23/scipy,zxsted/scipy,zxsted/scipy,rmcgibbo/scipy,cpaulik/scipy,argriffing/scipy,arokem/scipy,ales-erjavec/scipy,pizzathief/scipy,witcxc/scipy,dominicelse/scipy,minhlongdo/scipy,dominicelse/scipy,Eric89GXL/scipy,aman-iitj/scipy,futurulus/scipy,person142/scipy,behzadnouri/scipy,person142/scipy,lukauskas/scipy,kalvdans/scipy,minhlongdo/scipy,richardotis/scipy,haudren/scipy,lhilt/scipy,jseabold/scipy,ChanderG/scipy,jor-/scipy,mtrbean/scipy,Gillu13/scipy,efiring/scipy,aman-iitj/scipy,Kamp9/scipy,gef756/scipy,jakevdp/scipy,surhudm/scipy,pnedunuri/scipy,petebachant/scipy,WillieMaddox/scipy,mdhaber/scipy,behzadnouri/scipy,anielsen001/scipy,maniteja123/scipy,apbard/scipy,tylerjereddy/scipy,lhilt/scipy,felipebetancur/scipy,argriffing/scipy,rmcgibbo/scipy,sonnyhu/scipy