Cleanup and some extensions

Hi Guillaume,

I have some changes to pull. 

1) I did some cleanup in the same manner I did in the movie agent.
2) I added accepting from localmedia agent as per plex forum request.
3) I added some more recognition patterns as per plex forum request.
4) I removed lookup of files in parent folder (should not be necessary for TVShows).

Please review and comment or pull if there are no questions.