Updated openstack/openstack
Project: openstack/oslo.messaging  351118f577b1dfa3ef28cbb4ddfc092e47e38d9a
null
Fix syntax of relative imports for Python3

In Python 3, relative imports must be written "from .module import name":
http://docs.python.org/3.0/whatsnew/3.0.html#removed-syntax

Change-Id: I2ec8a7330e63ea64d291f2f37f0c01cdf765d4f7