removed plt from _pkgs so that it isn't imported at start up.  This causes problems on Unix machines when DISPLAY isn't set and GTK isn't available.
removed plt from _pkgs so that it isn't imported at start up.  This causes problems on Unix machines when DISPLAY isn't set and GTK isn't available.

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