Merged r2999 from trunk.
Fixed: inline images in wiki headings (#4112).
Merged r2979 and r2980 from trunk.
Merged r2261 from trunk.
Merged r2894 from trunk.
Merged r2924 from trunk.
Locales update * Swedish (#4161) * Traditional Chinese (#4145)
Translation updates (closes #4102, #4108, #4118).
Fixed a test failure.
Unified UsersController#list and #index.