Step version for Casablanca support

Issue-ID: POLICY-1233
Change-Id: Iaf3903722b2077da7dde355079da54e2bef43277
Signed-off-by: liamfallon <liam.fallon@ericsson.com>
diff --git a/.gitreview b/.gitreview
index 34ae977..4f83d6b 100644
--- a/.gitreview
+++ b/.gitreview
@@ -2,3 +2,4 @@
 host=gerrit.onap.org
 port=29418
 project=policy/drools-pdp.git
+defaultbranch=casablanca