Made adminclient get_user return None instead of throwing EC2Exception if requested user not available.
Made adminclient get_user return None instead of throwing EC2Exception if requested user not available.

This change is isolated to the adminclient code itself and has no ramifications on the nova server codebase. 

This bug severely impacts automated deployments of django-nova and the openstack-dashboard, which are scheduled for formal release next week, so I'd really like to see this simple patch make it in for bexar release.
n0ano/gantt,n0ano/gantt