When adding reviews, star ratings can be entered
Added other files for star ratings
Star ratings added to comments, review pages etc.
Added better hints for star ratings
Merge remote-tracking branch 'origin/master' into star-ratings

Conflicts:
	openreview/apps/main/forms.py
	openreview/apps/main/templates/main/add_review.html
Show and allow star ratings only if review is not comment
Star rating is now required when submitting new reviews
Fixed editing reviews
Fixed redirects (redirect to review instead of frontpage after saving)
Some fixes on deleting, adding, viewing and editing reviews and comments
Fixed editing comments
Added live previews for comments and reviews
Added+fixed broken tests
Merge remote-tracking branch 'origin/master' into star-ratings

Conflicts:
	openreview/apps/main/templates/main/add_review.html
	openreview/apps/papers/views.py
	static/css/base.css
	templates/base.html
Fixed incorrect merges, fixed tests
Addressed issues that came to light in the pull request
Fixed Review.save() - tests can actually be useful :D
reviews.yaml didn't supply rating value, fixed.
Merge pull request #68 from open-review/star-ratings

Star ratings
Splitted requirements into separate files and folders