Improved CommentsController, changed _url to _path helpers.
Improved CommentsController, changed _url to _path helpers.

mynameisfashanu/openconferenceware,ondrocks/openconferenceware,osbridge/openconferenceware,osbridge/openconferenceware,osbridge/openconferenceware,ondrocks/openconferenceware,ondrocks/openconferenceware,ondrocks/openconferenceware,mynameisfashanu/openconferenceware,osbridge/openconferenceware,mynameisfashanu/openconferenceware,mynameisfashanu/openconferenceware