fix example
[#64155576] changed kshema HOST to secure server - https
Merge remote-tracking branch 'origin/64155576-kshema-not-accepting-migration'
[#64163036] send environment
[#64315910] avoid multiple calls to realtime_status on same instance
Revert "[#64315910] avoid multiple calls to realtime_status on same instance"

This reverts commit 34a9ccb58cca027ede2809877f83cf8156947881.
set content type to csv
update spec
[BUGFIX#64539370] add instructor_id header
update specs to open_tmp_file usage
[#64462264] ImportModule#processed_lines
[#64462264] quick show in view
[#64462264] cache response, avoid multiple calls to status_url
[#64462264] show modules in a table