Add email notifications on group membership action. #80
Add group invite form + notifs. #80
Add a registered member to group from form. #80
Move model form to endpoint group-form.
Display membership approval date from members list.
Move github team creation as subscriber via event mechanism.
Add logger to email notification.
Fix broken route_url on registration step since a702a7c.
Move regsitration email notification to templates.
Add username blacklist validator.
Do not let authenticated user reach registration page.
Add missing listener from 701d262.
Lock account for an amount of time if too many login failure
attempt reached.