resized post details to a smaller width
Merge pull request #15 from DK-2K14/upvote-downvote

resized post details to a smaller width
adding before_actions for votes and comments
adding display of number of comments, and link to comments on homepage
using monban controller helpers
Merge pull request #13 from DK-2K14/ks-limiting-access-to-voting-commenting

adding before_actions for votes and comments
Posts are now polymorphic (links/text)

*Added link_post and text_post models
*Post model has polymorpic content
*Added dashboard controller and presenter
*Links are clickable on dashboard
*making TextPost controller, model
* adding validations to text post and link post