Handle overlength cross-listed course names
Add course name length validation
Adding API to get list of sandbox courses for sfu_computing_id

Based on assumption sandbox courses have sis_source_id starting with 'sandbox'
Cleaned up JSON output
Merge pull request #104 from va7map/fix-canvas212-length

Fix for overlength errors when creating courses
Adding more details for sandbox list
Merge pull request #105 from ronvs/sandbox-api

Adding API to get list of sandbox courses for sfu_computing_id