rename config.py to default_config.py and ignore custom config.py

Author: iromli

.gitignore

@@ -40,3 +40,4 @@ nosetests.xml
 coverage.xml
 .noseids
 *.*~
+config.py

users/__init__.py

@@ -69,23 +69,23 @@ def setup_logger():
 APP = Flask(__name__)
 
 #: Load configuration from any possible means.
-#: To override default configuration defined in ``users.config``,
+#: To override default configuration defined in ``users.default_config``,
 #: simply copy the contents of ``config.py`` file,
 #: and save it into a file.
 #:
 #: .. sourcecode:: sh
 #:
-#:     USERS_CONFIG=/path/to/config.py python runserver
+#:     USERS_CONFIG=/path/to/config.py python runserver.py
 #:
 #: Another way of doing it is by setting environment variable for each
 #: config item.
 #:
 #: .. sourcecode:: sh
 #:
 #:     USERS_CONFIG=/path/to/config.py USERS_MAIL_SUPPRESS_SEND=True \
-#:         python runserver
+#:         python runserver.py
 #:
-AppConfig(APP, default_settings="users.config")
+AppConfig(APP, default_settings="users.default_config")
 
 mail = Mail(APP)