Update 404 message
Update 404 message

Added a bit of personality to the 404 messages. :)

Change-Id: I0d0fe31156e1122473af1cbbf051a769cc91af49

cloudkeep/barbican,cloudkeep/barbican,jmvrbanac/barbican,MCDong/barbican,jfwood/barbican-1,MCDong/barbican,cneill/barbican,jfwood/barbican-1,cneill/barbican,openstack/barbican,jmvrbanac/barbican,openstack/barbican