Objects versions new style config

allow_versions is going to be a deprecated option.
Setting up the object versining in the new way.

[1] http://docs.openstack.org/developer/swift/overview_object_versioning.html

Change-Id: Ia520fbb6eb535b08ce83c0cb4bea31e7bba55eb3
diff --git a/lib/swift b/lib/swift
index f9ea028..b175f2e 100644
--- a/lib/swift
+++ b/lib/swift
@@ -397,6 +397,9 @@
     iniset ${SWIFT_CONFIG_PROXY_SERVER} app:proxy-server node_timeout 120
     iniset ${SWIFT_CONFIG_PROXY_SERVER} app:proxy-server conn_timeout 20
 
+    # Versioned Writes
+    iniset ${SWIFT_CONFIG_PROXY_SERVER} filter:versioned_writes allow_versioned_writes true
+
     # Configure Ceilometer
     if is_service_enabled ceilometer; then
         iniset ${SWIFT_CONFIG_PROXY_SERVER} filter:ceilometer "set log_level" "WARN"
@@ -489,8 +492,6 @@
         generate_swift_config_services ${swift_node_config} ${node_number} $(( CONTAINER_PORT_BASE + 10 * (node_number - 1) )) container
         iniuncomment ${swift_node_config} DEFAULT bind_ip
         iniset ${swift_node_config} DEFAULT bind_ip ${SWIFT_SERVICE_LISTEN_ADDRESS}
-        iniuncomment ${swift_node_config} app:container-server allow_versions
-        iniset ${swift_node_config} app:container-server allow_versions  "true"
 
         swift_node_config=${SWIFT_CONF_DIR}/account-server/${node_number}.conf
         cp ${SWIFT_DIR}/etc/account-server.conf-sample ${swift_node_config}