CLC-4487 - Updated CanvasCourseGradeExportController to initialize Canvas::Egrades without user id.
Updated #is_official_course to require canvas_course_id parameter instead of session variable
CLC-4487 - Remove requirement for user_id option with Canvas::Egrades
Merge pull request #3136 from redconfetti/CLC-4487-fix-forbidden

CLC-4487 - Resolve issue with CanvasCourseGradeExportController#is_official_course