Rename client_key to client_id which better matches fitbit docs

Author: percyperez

CHANGELOG.rst

@@ -1,7 +1,7 @@
 0.2 (2016-03-23)
 ================
 
-* Drop OAuth1 support. See .. _OAuth1-deprecated: https://dev.fitbit.com/docs/oauth2/#oauth-1-0a-deprecated
+* Drop OAuth1 support. See `OAuth1 deprecated <https://dev.fitbit.com/docs/oauth2/#oauth-1-0a-deprecated>`_
 * Drop py26 and py32 support
 
 0.1.3 (2015-02-04)

fitbit/api.py

@@ -198,12 +198,12 @@ class Fitbit(object):
         'frequent',
     ]
 
-    def __init__(self, client_key, client_secret, system=US, **kwargs):
+    def __init__(self, client_id, client_secret, system=US, **kwargs):
         """
         Fitbit(<id>, <secret>, access_token=<token>, refresh_token=<token>)
         """
         self.system = system
-        self.client = FitbitOauth2Client(client_key, client_secret, **kwargs)
+        self.client = FitbitOauth2Client(client_id, client_secret, **kwargs)
 
         # All of these use the same patterns, define the method for accessing
         # creating and deleting records once, and use curry to make individual

fitbit_tests/test_auth.py

@@ -11,7 +11,7 @@ class Auth2Test(TestCase):
     make sure we call the right oauth calls, respond correctly based on the responses
     """
     client_kwargs = {
-        'client_key': 'fake_id',
+        'client_id': 'fake_id',
         'client_secret': 'fake_secret',
         'callback_uri': 'fake_callback_url',
         'scope': ['fake_scope1']

fitbit_tests/test_exceptions.py

@@ -11,7 +11,7 @@ class ExceptionTest(unittest.TestCase):
     Tests that certain response codes raise certain exceptions
     """
     client_kwargs = {
-        "client_key": "",
+        "client_id": "",
         "client_secret": "",
         "access_token": None,
         "refresh_token": None