Translate exceptions happen in Neutron driver
Translate exceptions happen in Neutron driver

This patch adds sdk translate_exception decorator to all Neutron
driver interfaces.

Change-Id: I29dc94972e7577e0622cdf460528eb974a96ec99

openstack/senlin,openstack/senlin,tengqm/senlin-container,tengqm/senlin-container,stackforge/senlin,stackforge/senlin,openstack/senlin