Make more consistent use of BLENDER_ID_ENDPOINT

Now BLENDER_ID_ENDPOINT is used for the Blender ID OAuth config,
and it's directly accessed when building requests for Blender ID token
validation (without using utility functions).

pillar/config.py

@@ -32,7 +32,7 @@ SECRET_KEY = ''
 AUTH_TOKEN_HMAC_KEY = b''
 
 # Authentication settings
-BLENDER_ID_ENDPOINT = 'http://blender-id:8000/'
+BLENDER_ID_ENDPOINT = 'https://id.local:8000'
 
 CDN_USE_URL_SIGNING = True
 CDN_SERVICE_DOMAIN_PROTOCOL = 'https'
@@ -124,9 +124,8 @@ BLENDER_ID_USER_INFO_TOKEN = '-set-in-config-local-'
 # Example entry:
 # OAUTH_CREDENTIALS = {
 #    'blender-id': {
-#        'id': 'CLOUD-OF-SNOWFLAKES-43',
+#        'id': 'CLOUD-OF-SNOWFLAKES-42',
 #        'secret': 'thesecret',
-#        'base_url': 'http://blender-id:8000/'
 #     }
 # }
 # OAuth providers are defined in pillar.auth.oauth