DOC updates [skip ci]

updated README.md
update CONTRIBUTING.md
add docs/getting_started_on_windows.md
[skip ci]
Minor version bump to sass to get it working with windows.
Forgot to update a reference.
Organizing jobs into folders based on the queue they're in.
Adding directory to autoload, to ensure the classes can be found.
Merge pull request #25 from sachinm/master

DOC updates [skip ci]
Merge pull request #28 from RexMorgan/upgrade-sass

Minor version bump to sass to get it working with windows.
Merge pull request #30 from RexMorgan/organize-jobs

Organize jobs