Adding paramiko and unittest2 to pip-requires

Change-Id: I485e167908718805e36c9cdb88940e9ca0c06ec5
diff --git a/tools/pip-requires b/tools/pip-requires
index b22d1b8..02c965b 100644
--- a/tools/pip-requires
+++ b/tools/pip-requires
@@ -7,3 +7,5 @@
 pika
 dnspython
 ipython
+unittest2
+paramiko