Add facility to set up a Slack inviter page, where visitors can enter their email address to invite themselves into a Slack team.
The page is not advertised by default, content managers can share the link anywhere they want.
The Slack team, OAuth token, and informative text of the invitation page can be configured.
Additionally, the regmaster API can be used to check an email address for being registered before accepting the invitation request. This check needs to be configured by the conf.researchr.org system administrators (editors are directed to the contact form if they want to have this)

Submitted by Elmer van Chastelet on 3 June 2020 at 08:15