[nojira] Create a document for resetting the system.
Merge pull request #187 from coyote/document_reset

[nojira] Create a document for resetting the system.
CYB-309 Fix leaky state in several specs

https://jira.ets.berkeley.edu/jira/browse/CYB-309
Merge pull request #188 from coyote/leak_plug

CYB-309 Fix leaky state in discussion_topics_processor_spec