Refactor plugin loading code.
Fix torrent_scrub dependency loading
Add error handling to description rendering
Change pushover priority to last to prevent repeated messages due to failing plugins
Minor improvements for rss template.
Cleanups for plugin.py
Fix priority on pushover
Added .gitattributes to deal with line endings.

- https://help.github.com/articles/dealing-with-line-endings
Normalize line endings.
Move priority of all notification outputs to last.
History plugin enhancements.

- Argument --history now accepts optional number of entries to show. Fixes #1272
- History plugin can now be disabled with 'history: no'
Merge branch 'master' of https://github.com/Flexget/Flexget
Set default for rss plugin all_entries option to true.
Add links to testing plugins
Merge conflict gitignore
Add a unit test for plugin loading from external directories.
Merge branch 'master' of https://github.com/Flexget/Flexget

Flexget added test for external plugins

Which is exactly what isn't working on mine
Allow new plugins to be loaded after manager has started.
Fix external plugin loading unit test.
Merge branch 'master' of https://github.com/Flexget/Flexget

Possible Fix to problems
Add Notify-osd option for linux based systems