AM processing: course structure for Kylie's team

[mginda]

• [x] Process course structure data
  • [x] Trouble shoot script for any errors found while testing new course.
  • [x] Upload new script to GitHub repo
• [x] Share with Kylie's team.

[mginda]

See: https://github.com/mginda/edx-studentcourseanalytics/commits/master/edX-0-courseStructureMeta.R