CLC-4070 CLC-4100 Centralize CalCentral authorization
CLC-4070 Add expected Pundit policy inheritance
CLC-4070 Respond to code review
Merge pull request #2827 from raydavis/raywip

CLC-4070 CLC-4100 Centralize CalCentral authorization
CLC-4108 - Added '-c' flag option to script/sync-canvas-all-users.sh for purpose of running with 'clear_sis_stickiness' mode when performing SIS User Import
CLC-4108 - Added logger statement to output information on user updates outputted to CSV by Canvas::MaintainAllUsers
CLC-4108 - Updated Canvas::SisImport#import_users to support extra import parameter string
CLC-4108 - Added option to run processing via Canvas::MaintainAllUsers with 'clear_stickiness' option during SIS Import