lock! method for QuizLocks
Authorization for locking
Controller for QuizLocks
Move subclass initializing into application controller
Delegate locked? method
Use schema.rb instead of sql
Remove quiz_id from question
Add indicies for quiz_locks
Make sure question has type
Include gon in view
Make lock path visible to gon
Make time_left an integer
Push time_left to gon
Default locked to false
Fix naming