Updated openstack/openstack
Project: openstack/ceilometer  98a1f79bbb489f12daa77ebe22881049ecad13d0

XenAPI support: Memory Usage

Implemented inspect_memory_usage() to inspect the memory usage statistics
for an instance.

Change-Id: I0a8549e9e80ffeab18acc3b236c8fdc63d970783
Implements: blueprint xenapi-support