Fix bug 988034 - Quantum Network Manager - not clearing ips
Fix bug 988034 - Quantum Network Manager - not clearing ips

Added a line in nova_ipam_lib.QuantumNovaIPAMLib init
method to ensure we clean up IPs and explanation of whats
going on.

Also, nuked release_fixed_ip as that is not
needed in QuantumManager anymore.

Change-Id: Ic2ad1e87441c448c10ff097b28d2b6347eef5401

n0ano/gantt,n0ano/gantt