add show nested stack to list stacks
diff --git a/openstack-heat/src/main/java/org/jclouds/openstack/heat/v1/options/ListStackOptions.java b/openstack-heat/src/main/java/org/jclouds/openstack/heat/v1/options/ListStackOptions.java
index 9f85b08..4a5e752 100644
--- a/openstack-heat/src/main/java/org/jclouds/openstack/heat/v1/options/ListStackOptions.java
+++ b/openstack-heat/src/main/java/org/jclouds/openstack/heat/v1/options/ListStackOptions.java
@@ -160,8 +160,8 @@
    /**
     * Return all the stack of all the tenant
     */
-   public ListStackOptions globalTenant(Boolean globalTenant) {
-      this.queryParameters.put("global_tenant", globalTenant != null ? Boolean.toString(globalTenant) : "false");
+   public ListStackOptions globalTenant(boolean globalTenant) {
+      this.queryParameters.put("global_tenant", Boolean.toString(globalTenant));
       return this;
    }
 
@@ -184,6 +184,14 @@
       return this;
    }
 
+   /**
+    * Include nested stacks in the stack listing.
+    */
+   public ListStackOptions showNested(boolean showNested) {
+      this.queryParameters.put("show_nested",  Boolean.toString(showNested));
+      return this;
+   }
+
    public static Builder builder() {
       return new Builder();
    }
@@ -233,11 +241,18 @@
       }
 
       /**
-       * @see ListStackOptions#globalTenant(Boolean
+       * @see ListStackOptions#globalTenant(boolean)
        */
-      public static ListStackOptions globalTenant(Boolean globalTenant) {
+      public static ListStackOptions globalTenant(boolean globalTenant) {
          return new ListStackOptions().globalTenant(globalTenant);
       }
+
+      /**
+       * @see ListStackOptions#showNested(boolean)
+       */
+      public static ListStackOptions showNested(boolean showNested) {
+         return new ListStackOptions().showNested(showNested);
+      }
    }
 
 }
diff --git a/openstack-heat/src/test/java/org/jclouds/openstack/heat/v1/features/StackApiMockTest.java b/openstack-heat/src/test/java/org/jclouds/openstack/heat/v1/features/StackApiMockTest.java
index 841c41a..2695d5a 100644
--- a/openstack-heat/src/test/java/org/jclouds/openstack/heat/v1/features/StackApiMockTest.java
+++ b/openstack-heat/src/test/java/org/jclouds/openstack/heat/v1/features/StackApiMockTest.java
@@ -204,7 +204,7 @@
          HeatApi heatApi = api(server.getUrl("/").toString(), "openstack-heat", overrides);
          StackApi api = heatApi.getStackApi("RegionOne");
 
-         ListStackOptions options = ListStackOptions.Builder.name("simple_stack");
+         ListStackOptions options = ListStackOptions.Builder.name("simple_stack").showNested(true).globalTenant(true);
 
          List<Stack> stacks = api.list(options);
 
@@ -213,7 +213,7 @@
           */
          assertThat(server.getRequestCount()).isEqualTo(2);
          assertAuthentication(server);
-         assertRequest(server.takeRequest(), "GET", BASE_URI + "/stacks?name=simple_stack");
+         assertRequest(server.takeRequest(), "GET", BASE_URI + "/stacks?name=simple_stack&show_nested=true&global_tenant=true");
 
          /*
           * Check response
diff --git a/openstack-heat/src/test/java/org/jclouds/openstack/heat/v1/options/ListStackOptionsTest.java b/openstack-heat/src/test/java/org/jclouds/openstack/heat/v1/options/ListStackOptionsTest.java
index 066f95e..b93d4fe 100644
--- a/openstack-heat/src/test/java/org/jclouds/openstack/heat/v1/options/ListStackOptionsTest.java
+++ b/openstack-heat/src/test/java/org/jclouds/openstack/heat/v1/options/ListStackOptionsTest.java
@@ -24,6 +24,7 @@
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.jclouds.openstack.heat.v1.options.ListStackOptions.Builder.globalTenant;
+import static org.jclouds.openstack.heat.v1.options.ListStackOptions.Builder.showNested;
 import static org.jclouds.openstack.heat.v1.options.ListStackOptions.Builder.limit;
 import static org.jclouds.openstack.heat.v1.options.ListStackOptions.Builder.marker;
 import static org.jclouds.openstack.heat.v1.options.ListStackOptions.Builder.name;
@@ -106,4 +107,11 @@
       assertThat(options.buildQueryParameters().get("global_tenant"))
             .isEqualTo(ImmutableSet.of("true"));
    }
+
+    public void testShowNested() {
+       ListStackOptions options = showNested(true);
+       assertThat(options.buildQueryParameters().get("show_nested"))
+             .isEqualTo(ImmutableSet.of("true"));
+    }
+
 }
diff --git a/openstack-heat/src/test/resources/stack_get_response.json b/openstack-heat/src/test/resources/stack_get_response.json
index cce3ff3..e20c009 100644
--- a/openstack-heat/src/test/resources/stack_get_response.json
+++ b/openstack-heat/src/test/resources/stack_get_response.json
@@ -1,5 +1,6 @@
 {
     "stack": {
+        "parent": null,
         "capabilities": [],
         "creation_time": "2014-06-03T20:59:46Z",
         "description": "sample stack",
diff --git a/openstack-heat/src/test/resources/stack_list_response.json b/openstack-heat/src/test/resources/stack_list_response.json
index 66d2532..6d527ed 100644
--- a/openstack-heat/src/test/resources/stack_list_response.json
+++ b/openstack-heat/src/test/resources/stack_list_response.json
@@ -1,6 +1,7 @@
 {
     "stacks": [
         {
+            "parent": null,
             "creation_time": "2014-06-03T20:59:46Z",
             "description": "sample stack",
             "id": "3095aefc-09fb-4bc7-b1f0-f21a304e864c",