Start passing cloud_config object to shade

In preparation for shade taking all of its config directly from
cloud_config objects, pass the one we have in. This way we'll be passing
to both interfaces, so that shade can change which one it cares about.

Change-Id: I4e4c3824c8391597cb44bba61353d6f5dd947d54

nodepool/provider_manager.py

@@ -288,6 +288,7 @@ class ProviderManager(TaskManager):
     def _getClient(self):
         return shade.OpenStackCloud(
             self.provider.cloud_config.name,
+            cloud_config=self.provider.cloud_config,
             **self.provider.cloud_config.config)
 
     def runTask(self, task):

requirements.txt

@@ -18,6 +18,6 @@ PrettyTable>=0.6,<0.8
 # shade has a looser requirement on six than nodepool, so install six first
 six>=1.7.0
 os-client-config>=1.2.0
-shade
+shade>=0.7.0
 diskimage-builder
 voluptuous