adds unicorn to gem file, includes procfile per instructions on heroku that sets unicorn as the server
runs bundle and updates gemfile.lock
Adds unicorn.rb config file
* Follows instructions on deploy a rails app using unicorn on heroku at https://devcenter.heroku.com/articles/rails-unicorn
Merge pull request #15 from opleban/melissa

added feature to answer a question
Merging from master
Merge branch 'master' of https://github.com/opleban/Snack_Overflow into Ori
Adds comment controller methods
* adds CommentsController#post private method which identifies the post_type
* adds CommentsController#create controller method
* adds CommentsController#comments_params method which allows mass assignment for comments
passes instance variable containing an array of answer objects for any question
adds partial pointing to new_comments form in questions list view
adds an each loop listing each comment for a question
adds answers list to questions show view, includes each questions comments, and a new comment form
modifies comment controller for AJAX, now returns JSON
adds doT template script for comment items
adds doT.js file to assets
adds javascript for comments ajax
adds questions_show css file
adds dates helper module for better formatted date time strings
Adds partials for comments
* adds show partial view for single comment
* adds index partial view for all comments of a particular item
* adds new partial with a form to add a new comment
adds whitespace
renames questions/show.js to questions/comments_show.js for merge with Melissa's branch
resolved merging with ori