Added covariance output to leastsq.
Added covariance output to leastsq.

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