For now, this only includes course id, search terms, and result count.
Information is logged both to the standard logger for near-term analysis
and the event tracker for the longer term. Result count logging requires
commit 02466b1 of cs_comments_service (otherwise it will be null).

To remove XML info that’s in course staff doc now.

doc-332

changes to problem_check to support answer distribution; also provided
an example and nav in the introduction

Documentation updates to add missing fields and verify descriptions of existing fields for discussion data

cleaned up config file as well

STUD-1094