Updated openstack/openstack
Project: openstack/neutron  b3ec1cd6578a19413893a6b2ef276532c44c2a4f
null
Use save_and_reraise_exception when reraise exception

This commit fixes neutron core and common codes.

Partial-Bug: #1279813
Change-Id: Id109924c7ff9b4f0d74c23665016a54bfd7dff77