disable uploading to s3 in testing and configured some testing
remove carrierwave-video, ffmpeg
remove .video_duration
fixed end error
add rating and user_rated attributes to tutorial model
add rating and user_rated to tutorial strong params
format tutorials model
add rating methods to tutorials controller
add comments to rating methods in tutorial controller
add rating? method to tutorial model
add rating buttons to tutorial show page
add rating actions to tutorial controller
change buttons to submit and add forms to patch rating actions
add patch actions for rate_up and rate_down
add rating to tutorial show page
finish rate_up and rate_down in tutortials controller
update rating? method in tutorial model
update rating form paths in tutorial show page
update routes
adjust site index styles