Enables LMS to handle deprecated URLs

I'd like to see if it's possible to change the way this file is imported to do the COURSE_ID_PATTERN in the `include` for this file at the `lms/urls.py` level (like we do with the instructor dashboard API urls). I think taht'd be cleaner. The only confusion is some of the URLs in this file don't use the Course_ID - but that actually seems wrong. Unfortunately @dcadams is out of town this week and he wrote this.