Added Czech translation (Jan Kadlecek).
Boards: new message form displayed with no additional request.
Slight change to issues/show.
Sligth stylesheet change.
Added a named route for the home page.
Fixed projects search.
Search engine now only searches objects the user is allowed to view.
Project activity view now only shows what the user is allowed to view.
Added length validation for IssueCategory name.
Modified history.png
