complete comment controller
add comments route
add comment views and fix bugs in controller and form
delete the orphaned comment form in the post views
Merge branch 'development' of https://github.com/ctorstens/ScreenOverflow into comment_crud
Merge pull request #5 from ctorstens/comment_crud

Comment crud
Merge branch 'master' of https://github.com/ctorstens/ScreenOverflow into add_voting