Use the Member role with horizon

Horizon by default using the _member_ role,
which is considered as a legacy role.

The tools/create_userrc.sh already creates the regular users,
with Member role.

Change-Id: Ibc07a0f28d0729f8a717a54e94fe014853363592
Closes-Bug: #1421616
diff --git a/lib/horizon b/lib/horizon
index a8e83f9..c6e3692 100644
--- a/lib/horizon
+++ b/lib/horizon
@@ -94,6 +94,7 @@
     cp $HORIZON_SETTINGS $local_settings
 
     _horizon_config_set $local_settings "" COMPRESS_OFFLINE True
+    _horizon_config_set $local_settings "" OPENSTACK_KEYSTONE_DEFAULT_ROLE \"Member\"
 
     _horizon_config_set $local_settings "" OPENSTACK_HOST \"${KEYSTONE_SERVICE_HOST}\"
     _horizon_config_set $local_settings "" OPENSTACK_KEYSTONE_URL "\"${KEYSTONE_SERVICE_PROTOCOL}://${KEYSTONE_SERVICE_HOST}:${KEYSTONE_SERVICE_PORT}/v2.0\""