Adding Connection Throttle feature
diff --git a/rackspace/lb/v1/throttle/fixtures.go b/rackspace/lb/v1/throttle/fixtures.go
new file mode 100644
index 0000000..41be218
--- /dev/null
+++ b/rackspace/lb/v1/throttle/fixtures.go
@@ -0,0 +1,58 @@
+package throttle
+
+import (
+	"fmt"
+	"net/http"
+	"strconv"
+	"testing"
+
+	th "github.com/rackspace/gophercloud/testhelper"
+	fake "github.com/rackspace/gophercloud/testhelper/client"
+)
+
+func _rootURL(id int) string {
+	return "/loadbalancers/" + strconv.Itoa(id) + "/connectionthrottle"
+}
+
+func mockGetResponse(t *testing.T, lbID int) {
+	th.Mux.HandleFunc(_rootURL(lbID), func(w http.ResponseWriter, r *http.Request) {
+		th.TestMethod(t, r, "GET")
+		th.TestHeader(t, r, "X-Auth-Token", fake.TokenID)
+
+		w.Header().Add("Content-Type", "application/json")
+		w.WriteHeader(http.StatusOK)
+
+		fmt.Fprintf(w, `
+{
+  "connectionThrottle": {
+    "maxConnections": 100
+  }
+}
+`)
+	})
+}
+
+func mockCreateResponse(t *testing.T, lbID int) {
+	th.Mux.HandleFunc(_rootURL(lbID), func(w http.ResponseWriter, r *http.Request) {
+		th.TestMethod(t, r, "PUT")
+		th.TestHeader(t, r, "X-Auth-Token", fake.TokenID)
+
+		th.TestJSONRequest(t, r, `
+{
+  "connectionThrottle": {
+    "maxConnections": 200
+  }
+}
+    `)
+
+		w.WriteHeader(http.StatusOK)
+	})
+}
+
+func mockDeleteResponse(t *testing.T, lbID int) {
+	th.Mux.HandleFunc(_rootURL(lbID), func(w http.ResponseWriter, r *http.Request) {
+		th.TestMethod(t, r, "DELETE")
+		th.TestHeader(t, r, "X-Auth-Token", fake.TokenID)
+		w.WriteHeader(http.StatusOK)
+	})
+}