merge lbaasv2, portsbinding, volumes v2; remove 'rackspace' refs; update docs
diff --git a/openstack/compute/v2/images/results.go b/openstack/compute/v2/images/results.go
index f38466b..a55b8f1 100644
--- a/openstack/compute/v2/images/results.go
+++ b/openstack/compute/v2/images/results.go
@@ -45,6 +45,8 @@
 	Status   string
 
 	Updated string
+	
+	Metadata map[string]string
 }
 
 // ImagePage contains a single page of results from a List operation.
diff --git a/openstack/compute/v2/images/testing/requests_test.go b/openstack/compute/v2/images/testing/requests_test.go
index a13b086..e2d64d3 100644
--- a/openstack/compute/v2/images/testing/requests_test.go
+++ b/openstack/compute/v2/images/testing/requests_test.go
@@ -38,8 +38,7 @@
 							"created": "2014-09-23T12:54:52Z",
 							"minDisk": 0,
 							"progress": 100,
-							"minRam": 0,
-							"metadata": {}
+							"minRam": 0
 						},
 						{
 							"status": "ACTIVE",
@@ -50,8 +49,7 @@
 							"created": "2014-09-23T12:51:42Z",
 							"minDisk": 0,
 							"progress": 100,
-							"minRam": 0,
-							"metadata": {}
+							"minRam": 0
 						}
 					]
 				}
@@ -131,8 +129,7 @@
 					"created": "2014-09-23T12:54:52Z",
 					"minDisk": 0,
 					"progress": 100,
-					"minRam": 0,
-					"metadata": {}
+					"minRam": 0
 				}
 			}
 		`)