Recognize TPB better when parsing filenames

[GoogleCodeExporter]

As suggested here:

http://comicrack.cyolito.com/forum/32-news-and-announcements/33534-comic-vine-sc
raper?start=670#41243

If a filename has no number in it at all, when choosing the best series, we 
should prefer a series with TPB or "trade" in the title.

Original issue reported on code.google.com by cban...@gmail.com on 1 Dec 2014 at 6:55

[GoogleCodeExporter]

This is not going to be easy to do based on series title, since Comic Vine 
seems to be removing occurrences of "trade" or "tpb" from series titles.   
Occasionally the issues themselves are titled with "trade" or "tbp", but of 
course we cannot scan through the issues in each series while deciding how to 
sort/filter series for a simple comic book search...

Original comment by cban...@gmail.com on 4 Apr 2015 at 11:04