Properly report error if file loading throws
Properly report error if file loading throws

If the file loader throws an exception, catch it and report it as a
normal error. Previously it was reported as uncaught exception.

PKRoma/poedit,alexhenrie/poedit,vslavik/poedit,alexhenrie/poedit,nawawi/poedit,nawawi/poedit,vslavik/poedit,vslavik/poedit,vslavik/poedit,vslavik/poedit,PKRoma/poedit,alexhenrie/poedit,PKRoma/poedit,PKRoma/poedit,nawawi/poedit,alexhenrie/poedit,nawawi/poedit,nawawi/poedit,PKRoma/poedit,alexhenrie/poedit