Remove the organization_involvement class
Update migration and remove all references to involvements
Do not delete old involvements anymore
Update user memberships through organization but without organization_involvements
Reduce organization memberships dependency
Members tab in project config is now fully functionnal without organization_involvements
Update tests
Remove OrganizationRole class
Refactor plugin -> Make it work without organization_memberships
Add a few specs
Update version number
Fix form columns when user list is longer than role list
Display Organization of current assigned user in issue form
Improve issue assignment by organization
Simplify members view