Fix KeyError with events.

discord/__init__.py

@@ -15,8 +15,8 @@ __title__ = 'discord'
 __author__ = 'Rapptz'
 __license__ = 'MIT'
 __copyright__ = 'Copyright 2015 Rapptz'
-__version__ = '0.5.0'
+__version__ = '0.5.1'
-__build__ = 0x005000
+__build__ = 0x005010
 
 from .client import Client
 from .user import User

discord/client.py

@@ -107,7 +107,7 @@ class Client(object):
             'on_channel_create': _null_event,
             'on_member_join': _null_event,
             'on_member_remove': _null_event,
-            'on_member_join': _null_event,
+            'on_member_update': _null_event,
             'on_server_create': _null_event,
             'on_server_delete': _null_event,
         }
@@ -197,7 +197,7 @@ class Client(object):
         try:
             self.events[event_name](*args, **kwargs)
         except Exception as e:
-            self.events['error'](event_name, *sys.exc_info())
+            self.events['on_error'](event_name, *sys.exc_info())
 
 
     def _received_message(self, msg):