Removed tornado async features, testing to see if this resolves blank page and other related possible issues.

Removed double call to get_scene_exceptions when displaying shows.
Database now closes connection after each query and reconnects if closed to ensure no more connection and locked database problems.

Fixed more internal 500 errors.
fix for tornado error handler
Fix for __exit__ DB errors
Fix for KeyError: None in displayShows
Moved scene conversion routine in Name Parser to end so that it only converts the best result match and not every single one wasting time and cycles.