Added new setup.completed event (#7217)
Added new setup.completed event (#7217)

refs #6924

- New event allows us to hook into setup in other ways
daimaqiao/Ghost-Bridge,Gargol/Ghost,singular78/Ghost,JohnONolan/Ghost,rizkyario/Ghost,disordinary/Ghost,obsoleted/Ghost,cwonrails/Ghost,stridespace/Ghost,Kikobeats/Ghost,adam-paterson/blog,TryGhost/Ghost,sebgie/Ghost,adam-paterson/blog,acburdine/Ghost,bitjson/Ghost,stridespace/Ghost,Gargol/Ghost,chevex/undoctrinate,sebgie/Ghost,acburdine/Ghost,klinker-apps/ghost,MadeOnMars/Ghost,mohanambati/Ghost,daimaqiao/Ghost-Bridge,jorgegilmoreira/ghost,ManRueda/manrueda-blog,singular78/Ghost,vainglori0us/urban-fortnight,letsjustfixit/Ghost,Kikobeats/Ghost,janvt/Ghost,jomahoney/Ghost,kevinansfield/Ghost,olsio/Ghost,novaugust/Ghost,cwonrails/Ghost,leninhasda/Ghost,leninhasda/Ghost,ivantedja/ghost,tidyui/Ghost,ngosinafrica/SiteForNGOs,dbalders/Ghost,letsjustfixit/Ghost,kevinansfield/Ghost,e10/Ghost,e10/Ghost,BlueHatbRit/Ghost,vainglori0us/urban-fortnight,mohanambati/Ghost,SkynetInc/steam,mohanambati/Ghost,pollbox/ghostblog,lukekhamilton/Ghost,rizkyario/Ghost,bitjson/Ghost,SkynetInc/steam,ErisDS/Ghost,jorgegilmoreira/ghost,cwonrails/Ghost,dbalders/Ghost,lukekhamilton/Ghost,sebgie/Ghost,MadeOnMars/Ghost,ManRueda/manrueda-blog,ballPointPenguin/Ghost,rizkyario/Ghost,vainglori0us/urban-fortnight,novaugust/Ghost,janvt/Ghost,TryGhost/Ghost,disordinary/Ghost,ManRueda/manrueda-blog,daimaqiao/Ghost-Bridge,olsio/Ghost,lf2941270/Ghost,Kikobeats/Ghost,ignasbernotas/nullifer,novaugust/Ghost,BlueHatbRit/Ghost,JohnONolan/Ghost,ignasbernotas/nullifer,singular78/Ghost,klinker-apps/ghost,ballPointPenguin/Ghost,ErisDS/Ghost,jomahoney/Ghost,acburdine/Ghost,TryGhost/Ghost,jorgegilmoreira/ghost,stridespace/Ghost,JohnONolan/Ghost,obsoleted/Ghost,tidyui/Ghost,ngosinafrica/SiteForNGOs,kevinansfield/Ghost,letsjustfixit/Ghost,pollbox/ghostblog,ErisDS/Ghost,dbalders/Ghost,lf2941270/Ghost