getConference not introduced in Lesson 4

[qgreg]

In the videos for "Using Transactions", the getConference endpoint appears functional when the instructor uses the site. However, this code is not in any TODO files in lesson 4. Per the forums, this issue was first raised in June.

https://discussions.udacity.com/t/lesson-4-conference-details-not-implemented-how-to-register-to-a-conference/20705