PEP8 fixes, cleanup parse name like we do everywhere else.
Due to previous bugs, cleanup and restore data where we can.
* Reset specials back to skipped (some were set to wanted automatically).
* Sanitize episode release_name off snatched history data (undo data thrown away by re-scan process).
* Sanitize all release group data in the history (cleanup RP/NZBGeek/Repost).
Merge pull request #865 from thezoggy/dev--fix_history_specials

fix history & specials