[skip travis] MAINT: PR 13199 revisions
[skip travis] MAINT: PR 13199 revisions

* author list update for `1.6.0` release notes

* issue/pr list updates for `1.6.0` release notes

matthew-brett/scipy,WarrenWeckesser/scipy,grlee77/scipy,zerothi/scipy,endolith/scipy,vigna/scipy,endolith/scipy,perimosocordiae/scipy,grlee77/scipy,zerothi/scipy,rgommers/scipy,tylerjereddy/scipy,Stefan-Endres/scipy,tylerjereddy/scipy,anntzer/scipy,matthew-brett/scipy,grlee77/scipy,andyfaff/scipy,perimosocordiae/scipy,grlee77/scipy,perimosocordiae/scipy,perimosocordiae/scipy,Eric89GXL/scipy,Stefan-Endres/scipy,ilayn/scipy,andyfaff/scipy,Stefan-Endres/scipy,WarrenWeckesser/scipy,grlee77/scipy,rgommers/scipy,zerothi/scipy,WarrenWeckesser/scipy,anntzer/scipy,endolith/scipy,scipy/scipy,perimosocordiae/scipy,mdhaber/scipy,endolith/scipy,zerothi/scipy,e-q/scipy,andyfaff/scipy,matthew-brett/scipy,perimosocordiae/scipy,mdhaber/scipy,WarrenWeckesser/scipy,vigna/scipy,andyfaff/scipy,anntzer/scipy,andyfaff/scipy,mdhaber/scipy,andyfaff/scipy,rgommers/scipy,scipy/scipy,anntzer/scipy,ilayn/scipy,rgommers/scipy,scipy/scipy,scipy/scipy,endolith/scipy,Stefan-Endres/scipy,ilayn/scipy,e-q/scipy,vigna/scipy,mdhaber/scipy,zerothi/scipy,ilayn/scipy,Eric89GXL/scipy,rgommers/scipy,mdhaber/scipy,Eric89GXL/scipy,matthew-brett/scipy,Eric89GXL/scipy,tylerjereddy/scipy,tylerjereddy/scipy,zerothi/scipy,Stefan-Endres/scipy,endolith/scipy,e-q/scipy,tylerjereddy/scipy,matthew-brett/scipy,anntzer/scipy,vigna/scipy,anntzer/scipy,Eric89GXL/scipy,e-q/scipy,ilayn/scipy,WarrenWeckesser/scipy,ilayn/scipy,mdhaber/scipy,scipy/scipy,Eric89GXL/scipy,WarrenWeckesser/scipy,scipy/scipy,Stefan-Endres/scipy,e-q/scipy,vigna/scipy