Merge "Check network vlan ranges for correctness."

diff --cc quantum/common/exceptions.py
Simple merge

diff --cc quantum/plugins/linuxbridge/lb_quantum_plugin.py
Simple merge

diff --cc quantum/plugins/mlnx/mlnx_plugin.py
Simple merge

diff --cc quantum/plugins/nicira/QuantumPlugin.py
Simple merge

diff --cc quantum/plugins/openvswitch/agent/ovs_quantum_agent.py
Simple merge

diff --cc quantum/plugins/openvswitch/ovs_quantum_plugin.py
Simple merge