Use the params arg to AWSAuthConnection.make_request

Adding the params to the uri arg will cause the sigv4
signer to create the wrong canonical string.  By explicitly
passing the params as a separate arg, the sigv4 signer can
do the right thing.

Previously this would cause signature errors.

boto/glacier/layer1.py

@@ -72,13 +72,8 @@ def make_request(self, verb, resource, headers=None,
             headers = {}
         headers['x-amz-glacier-version'] = self.Version
         uri = '/%s/%s' % (self.account_id, resource)
-        if params:
-            param_list = []
-            for key, value in params:
-                param_list.append('%s=%s' % (urllib.quote(key),
-                                             urllib.quote(value)))
-            uri += '?' + '&'.join(param_list)
         response = AWSAuthConnection.make_request(self, verb, uri,
+                                                  params=params,
                                                   headers=headers,
                                                   data=data)
         if response.status in ok_responses: