Made commentable module
Fixed edge case in redirect

Conflicts:
	app/controllers/logins_controller.rb
Fixed spec test for shared example group
Made comments more acessible in view
Removed unneccesary string interpolation
Made changes off Chris/Zach's feedback
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More changes off feedback from David/Zach
One final change
Merge pull request #9 from sreddy11/new_comments_with_comments

New comments with comments