Rename start_call to create_call for consistency

Author: timcraft

nexmo/__init__.py

@@ -187,7 +187,7 @@ def update_application(self, application_id, params=None, **kwargs):
   def delete_application(self, application_id):
     return self.delete(self.api_host, '/v1/applications/' + application_id)
 
-  def start_call(self, params=None, **kwargs):
+  def create_call(self, params=None, **kwargs):
     return self.__post('/v1/calls', params or kwargs)
 
   def get_calls(self, params=None, **kwargs):

test_nexmo.py

@@ -473,7 +473,7 @@ def test_delete_application(self):
     self.assertEqual(request_user_agent(), self.user_agent)
 
   @responses.activate
-  def test_start_call(self):
+  def test_create_call(self):
     self.stub(responses.POST, 'https://api.nexmo.com/v1/calls')
 
     params = {
@@ -482,7 +482,7 @@ def test_start_call(self):
       'answer_url': ['https://example.com/answer']
     }
 
-    self.assertIsInstance(self.client.start_call(params), dict)
+    self.assertIsInstance(self.client.create_call(params), dict)
     self.assertEqual(request_user_agent(), self.user_agent)
     self.assertEqual(request_content_type(), 'application/json')