Commit
133c9bce3ec9f33d3376de997b02aa2306de196a
by Johannes FaltermeierBug 577561 - Deleting project does not update all Roles
Remove deleted project from all affected roles
So far this was only done for user's project admin roles.
This commit also reader and writer roles and covers groups in addition
to users.
Signed-off-by: Lucas Koehler <lkoehler@eclipsesource.com>