Refactor removearticles to only remove articles
Add normalization on the search string and the series name results
Searching now only compares ASCII a-z and 0-9 and all other characters
are replaced with single space, this is done to both the search string
and the result. This fixes an with names that are separated by a
hyphen (-) in the filename but in the Comic Vine name are separated by a
slash (/) and other similar issues.
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