optimize: add info['message'] in _minimize functions
optimize: add info['message'] in _minimize functions

Status messages are defined once for all optimizers. They are used for
display (disp=True) and to fill the 'message' field of `info` output.

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