Add: Support for AliasNames

TvDB's GetSeries function can return AliasNames. Example: http://thetvdb.com/api/GetSeries.php?seriesname=Raumschiff%20Enterprise%20-%20Das%20n%C3%A4chste%20Jahrhundert&language=de
Hi @johannesx75,
 
Can you just remove the extra tab on line 168.

Thank you in advance