c4ea338035
This changes logic to allow more missed use cases of course_image to work properly. The cases are: . XML courses with the course_image attribute set . Mongo courses that are imported without a contentstore . Mongo courses that have course_image set but don't have a content store It also exports default images_static_course.jpg to images/static_course.jpg to handle a use case where a course author uploaded an image to the default location in studio without using the studio interface for adding course images, they then export the course, and then import it without a contentstore
This is a simple, but non-trivial, course using multiple module types and some nested structure.