CLC-4026 Re-enable RegStatus
Merge pull request #2812 from raydavis/raywip

CLC-4026 Re-enable RegStatus
CLC-4091 - Added 'latest_term_enrollment_csv_set' timestamp attribute to Canvas::Synchronization model
CLC-4091 - Added comments to Canvas::SiteMembershipsMaintainer concerning dependency on Canvas::TermEnrollmentsCsv
CLC-4091 - Added rake task for exporting Canvas enrollments to CSV set
CLC-4091 - Added #delete_files_if_exists helper to Rspec environment for clearing temporary files
CLC-4091 - Moved #csv_count method from Canvas::RefreshAllCampusData to parent class Canvas::Csv, for use by all subclasses
CLC-4091 - Added Canvas::TermEnrollmentsCsv to export and provide section enrollments from CSV files sets
CLC-4091 - Converted last argument of Canvas::SiteMembershipsMaintainer initializer to options hash
CLC-4091 - Updated Canvas::TermEnrollmentsCsv#cached_canvas_section_enrollments to return enrollments in Canvas Enrollments API format
CLC-4091 - Added support to Canvas::SiteMembershipsMaintainer for using cached CSV enrollments instead of live Canvas Enrollments API for comparison