Fixes crash with imdb mpaa rating parsing.

- Fixes #1919
Let requests do the decoding of imdb pages.
Merge pull request #28 from prdatur/master

Added output plugin: RapidPush
Add --check-version to see if you are on latest release.
Add note to run git fetch when using --version from a git clone.
Merge --check-version into --version
Fix bug with {{task}} in jinja templates.
Tweak --version a bit more.
Switch to a cleaner method of getting version number from server.
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
Removed a bunch of import *
Refactor plugin loading code.
Fix torrent_scrub dependency loading
Add error handling to description rendering