PEP8 cleanups
Merge branch 'master' of https://github.com/Flexget/Flexget
Fixing issues with make_rss

- Restore configuration 'title' default back to using 'task' variable as string.
- Renamed metainfo feed to task
Cleanups to failed preset merging.
Minor tweaks to imdb_list and make_rss.
Remove git calls in --version
Add filename argument to pathscrub utility.
Move plugin now replaces path separators from filenames. fix #1911