Minor Cleanup for Audit+Honor Merging
Minor Cleanup for Audit+Honor Merging

- Added more informative comments
- Using .get() instead of [] to retrieve values to accommodate API changes

edx/edx-analytics-dashboard,open-craft/edx-analytics-dashboard,edx/edx-analytics-dashboard,Stanford-Online/edx-analytics-dashboard,nagyistoce/edx-analytics-dashboard,open-craft/edx-analytics-dashboard,nagyistoce/edx-analytics-dashboard,edx/edx-analytics-dashboard,open-craft/edx-analytics-dashboard,nagyistoce/edx-analytics-dashboard,Stanford-Online/edx-analytics-dashboard,rue89-tech/edx-analytics-dashboard,edx/edx-analytics-dashboard,rue89-tech/edx-analytics-dashboard,nagyistoce/edx-analytics-dashboard,Stanford-Online/edx-analytics-dashboard,Stanford-Online/edx-analytics-dashboard,open-craft/edx-analytics-dashboard,rue89-tech/edx-analytics-dashboard,rue89-tech/edx-analytics-dashboard