Explicitly specify the region_name when instanciating a client

Until now, the region_name was not specified when instanciating
cloudkittyclient from the horizon dashboard. This caused the
client to use systematically use the default region. That
behavior was problematic in multi-region setups, as only the
cloudkitty API of the default region could be reached.

Change-Id: Ibb399a0b5b96aa808b0bbb7a5a82dd4d8a948063

cloudkittydashboard/api/cloudkitty.py

@@ -35,11 +35,18 @@ def cloudkittyclient(request):
         project_id=request.user.project_id,
         domain_id=request.user.domain_id,
     )
+
+    adapter_options = {
+        'region_name': request.user.services_region,
+    }
+
     return ck_client.Client(
         '1',
         auth=auth,
         cacert=cacert,
-        insecure=insecure)
+        insecure=insecure,
+        adapter_options=adapter_options,
+    )
 
 
 def identify(what, name=False, key=None):