Make help command easier to find (recognize any punctuation prefix)
Pattern: Fix “mimic someone” to work without argument
Document “mimic someone” command
Pattern: Update yes/no/but stuff
Pattern:  Answer “who…” questions
Update message for personalities command (doesn't need the ‘?’ anymore)
Pattern: Respond to “who am I?”
Remove debugging output in filter_markov_output for now
Pattern: Better indefinite pronoun completions for “who” stuff