Merge pull request #2701 from edx/gprice/edit-forum-comment

...ec/discussion/view/response_comment_show_view_spec.coffee

...ee/spec/discussion/view/response_comment_view_spec.coffee

...fee/spec/discussion/view/thread_response_view_spec.coffee

common/static/coffee/src/discussion/utils.coffee

...e/src/discussion/views/discussion_thread_show_view.coffee

...ee/src/discussion/views/response_comment_edit_view.coffee

...ee/src/discussion/views/response_comment_show_view.coffee

.../coffee/src/discussion/views/response_comment_view.coffee

...fee/src/discussion/views/thread_response_show_view.coffee

...c/coffee/src/discussion/views/thread_response_view.coffee

lms/static/sass/_discussion.scss

lms/templates/discussion/_underscore_templates.html