localization updates
Moves visibility statement out of the query.
Adds :view_issues permission to default roles.
Makes :view_issues permission non public.
Fixes tests broken by r2532 (#2853).
Add links for one-click activity filtering (#2857).
Adds a branch for finer grained ticket wiewing/editing permissions.
Fixes user's activity link (#2853).
Fixes #2851.
Updates sample plugin README.
