Reduce memory for Barbican kmn nodes

Also, use ssh to clone reclass-system model

Change-Id: I51432c91cd7966cd196b6abda7416e4fb44c3389
diff --git a/tcp_tests/templates/cookied-mcp-queens-dvr-ssl-barbican/underlay.yaml b/tcp_tests/templates/cookied-mcp-queens-dvr-ssl-barbican/underlay.yaml
index c7dd479..8cee171 100644
--- a/tcp_tests/templates/cookied-mcp-queens-dvr-ssl-barbican/underlay.yaml
+++ b/tcp_tests/templates/cookied-mcp-queens-dvr-ssl-barbican/underlay.yaml
@@ -294,7 +294,7 @@
             role: salt_minion
             params:
               vcpu: !os_env SLAVE_NODE_CPU, 2
-              memory: !os_env SLAVE_NODE_MEMORY, 16384
+              memory: !os_env SLAVE_NODE_MEMORY, 4096
               boot:
                 - hd
               cloud_init_volume_name: iso
@@ -320,7 +320,7 @@
             role: salt_minion
             params:
               vcpu: !os_env SLAVE_NODE_CPU, 2
-              memory: !os_env SLAVE_NODE_MEMORY, 16384
+              memory: !os_env SLAVE_NODE_MEMORY, 4096
               boot:
                 - hd
               cloud_init_volume_name: iso
@@ -346,7 +346,7 @@
             role: salt_minion
             params:
               vcpu: !os_env SLAVE_NODE_CPU, 2
-              memory: !os_env SLAVE_NODE_MEMORY, 16384
+              memory: !os_env SLAVE_NODE_MEMORY, 4096
               boot:
                 - hd
               cloud_init_volume_name: iso