Relax tv show matching for names without season

This allows names on the format `foo.E01` and `foo.Part.1` to be parsed. Both common naming schemes especially for miniseries and such.

This should be added to xbmc because it's not a trivial to do in advancedsettings.xml without copy pasting from source code. I.e to parse foo.E01 properly it *must* be added after foo.s01.e01 buf before foo.103*, otherwise the year will interfere. Currently, xbmc will incorrectly parse foo.E01.2009 as season 20 episode 9.