Cleaning.
Fixes user search.
Renaming actions.
Set class names on members list according to member type.
Translation update: pt-BR (#3839)
Translation updates * Traditional Chinese (#3828) * Swedish (#3829)
Adds users management on group screen.
Enables group adding on project members form and fixes group roles update.
Changing l10n messages (fixes #3807)
Reset the default language for the test, autotest was caught it staying at :no
