fix category spec and fabricator
display my queue page
refactor queue item using delegate
update header bar
user can add video to my queue
refactor uniqueness of video_id in queue items sacop by user_id
add testing association between video and queue item when post create the queue item
extract the deteact of queue item order to method
fix seed
change follow: redirect to my queue page even create queue item faild
extract queue video to method
User can remove videos from queue
redirect to queue items index page when destroy queue
fix: redirect to my queue path when destroy queue
Merge pull request #4 from ArthurPai/feature/my_queue

Feature/my queue