Import Mattermost users into c.o for the election
Please import all users who had a Mattermost account as of September 24th, 2018 into c.o/civicrm. At this time I believe we just need Mattermost username and email address - but @bgm noted we should probably include the "join date" and "last active date" because we may use that information to determine who gets a mailing, who is eligible for the 2019 vote, etc.
"Mattermost" is already an IM type and I believe Nicolas and Stoob and I settled on that some time ago.