Update data/interfaces/default/comingEpisodes.tmpl

Prevent the destination url to trace back location of sickbeard website with HTTP_REFERER headers. 
With this change the website thetvdb will not be able to trace back the sickbeard location because HTTP_REFERER will be set to dereferer.org. 
Merge pull request #2 from Kwebbel/patch-1

Update data/interfaces/default/comingEpisodes.tmpl