answer_model and table setup
Merge pull request #4 from innovateworld/answer_model

answer_model and table setup
Add comment model and polymorphic associations
Remove doulble has_many association from question model
Merge pull request #5 from innovateworld/comment_model

Add comment model and polymorphic associations
created questions controller and established resources :questions in routes
added destroy to questions controller
Merge pull request #6 from innovateworld/question_controller

created questions controller and established resources :questions in rou...
Add answers_controller, modify routes
Merge pull request #7 from innovateworld/answers_controller

Add answers_controller, modify routes
Add user association on comment model
Merge pull request #8 from innovateworld/fix_comment

Add user association on comment model
Patch merge conflict in routes.rb
Patch second merge conflict