Wrong tracker URL format from torrent files should be unselected by default

## Present behavior ##
All tracker URL from inside the torrent files are selected (checked) by default
The user can manually **deselect** the 'wrong' tracker

## Expected behavior ##
Tracker URL that are not valid, missing http(s)://, udp:// or /announce should be uncheck.
The user can manually **select** this 'wrong' tracker.