Bugfix :: searchForNeededEpisodes : Fixed NoneType AttributeError exception.

Don't store None value bestResult (occurs when all results are rejected) in foundResults list. Quality comparisons with results from other providers throws an exception and prevents completion of the search.

I believe that findSeason() may suffer from the same problem (NoneType in return list), though that was on @Tolstyak's branch I discovered it. At the time I just threw a rough fix on it (Conjuro@19770dd6285686365cefc3ecb65b3c3af34d982b), but it would probably be better to find the root cause. findSeason() is somewhat larger to muddle through and right now I'm hungry, tired and got a headache, so I'll have to get back to it later, unless someone else wants to give it a whack.