Changes

• Added an endpoint on the Class Schedules entity that returns course IDs for courses that have an active and scheduled class in that term. Addresses https://github.com/uWaterloo/OpenData/issues/219
• Added instructor name, and identifier to the response object of Class Schedules where they return Class information. The added information is the instructors first name, last name, and a unique identifier which while not immutable, should rarely change, and will stay the same through an instructor name change. This should address https://github.com/uWaterloo/OpenData/issues/215

Notes

• We've made a logic change in the query that serves the Class Schedules endpoint. This change better represents classes that are available to students to take. This means we may return less results than previously.