add tests for get#comment and post#create_comment
fill in first three tests for commenting
finish creating test for commenting
added new_comment and create_comment methods
added new routes for article
edited commenting tests
update pending specs
update controllers
Merge pull request #20 from ospreys-2014/article_commenting

Article commenting
Will have a big merge soon, will add appropriate links to the views, and make the site functional
nested comments routes
update #index in CommentsController
update comments_controller
update form edit
update article show views with _single
add article votes tests
delete comments
Redone specs for comments_controller_spec
update comments controller for nested resources
update views _single
add post#vote route, add voteability to articles