It's a shame that this does seem to have died out now, but like others, I'd only used this really to set a couple of options, such as narrow tabs and default search engine. For those Interested, Safari Stand is still being developed, and works in Yosemite, http://hetima.com/safari/stand-e.html.
Also, for those wanting to uninstall, I have copies of their uninstallers for the normal and dev versions. I could probably bung them onto a share folder in GDrive or Dropbox if anyone is desperate and wants to personal message me.