Script to check if url is already in database.
Add support for OnlineTvRecorder.com

Due to limited access to the OnlineTvRecorder.com API (for details please visit
http://www.onlinetvrecorder.com/v2/?go=api) an API client id is needed to use
OnlineTvRecorder.com API (for details please visit
http://www.otrforum.com/showthread.php?62869-Api&p=349380&viewfull=1#post349380)
A formula to generate the checksum is also needed. Please implement this
function in inc/Configuration.pm.