Audit Action

[vishalpawle]

Use mongoid-history or equivalent.

We need to track some actions of the users so that we can show how active the user is on brails.org.

• Login
• Took a test
• Question attempted.
• Completed content (all questions answered correctly)
• Completed topic (all content completed)
• Completed level (all topics completed)

We track a question attempt to enable gamification at a later stage. The number of attempts the user has taken to get all the answers correct will determine his score! This scoring algorithm can decided later in #5

[rahul100885]

Working on it @rahul100885, @sivagollapalli