neutron: update to junit 4.11

Updated to latest JUnit which also involves some necessary changes to
the Pool & Ip matchers which no longer compile.

Signed-off-by: Mike Kolesnik <mkolesni@redhat.com>
(cherry picked from commit a501d2fc60449f31be72ff0e2379766b75b72c1c)

Conflicts:
	quantum-model/src/test/java/com/woorea/openstack/quantum/model/PortTest.java
	quantum-model/src/test/java/com/woorea/openstack/quantum/model/SubnetTest.java