Included python-novaclient in cord tester Dockerfile.
Python binding to openstack NOVA api.

Change-Id: I496726687588dba01b4fef521b804a8a3844d423
diff --git a/Dockerfile.tester b/Dockerfile.tester
index efbf359..4bade9e 100644
--- a/Dockerfile.tester
+++ b/Dockerfile.tester
@@ -7,7 +7,8 @@
         python python-pip python-setuptools python-scapy tcpdump doxygen doxypy wget \
         openvswitch-common openvswitch-switch \
         python-twisted python-sqlite sqlite3 python-pexpect telnet arping isc-dhcp-server \
-        python-paramiko python-maas-client python-keystoneclient python-neutronclient python-glanceclient
+        python-paramiko python-maas-client python-keystoneclient python-neutronclient python-glanceclient \
+        python-novaclient
 RUN easy_install nose
 RUN mkdir -p /root/ovs
 WORKDIR /root