Added trakt check-ins option to the config for developer level api keys.
Fix determining jar location when the server is spawning new processes now that onejar wraps the application and dependencies.
Added implementation of trakt checkins when enabled via config and using a developer level api key. Any existing checkin's will be cancelled before checking in the new episode
Added better error handling for unauthorized credentials. RetrofitError's are caught instead of broad Exceptions in TraktClient
Bumped version to v1.2.2