week3-part1 initial commit
ActiveRecord transaction implemented in update_queue action
moving ActiveRecord transaction into a private method
moving queue item normalizing code to private method
refactored the update_queue controller flow
adding condition to ensure current user only updates own queue items
adding normalization to delete action in queue_items controller
user can change video rating in the queue without review content
refactoring queue_items_controller_spec POST update_queue
pushing down normalize_queue_item_positions from queue_items_controller to user model layer
Merge pull request #6 from Sessl/week3-part1

Week3 part1