Update plugin list and use correct names.

sleekxmpp/plugins/__init__.py

@@ -17,10 +17,12 @@ __all__ = [
     'xep_0030',  # Service Discovery
     'xep_0033',  # Extended Stanza Addresses
     'xep_0045',  # Multi-User Chat (Client)
+    'xep_0047',  # In-Band Bytestreams
     'xep_0050',  # Ad-hoc Commands
     'xep_0059',  # Result Set Management
     'xep_0060',  # Pubsub (Client)
-    'xep_0066',  # Out-of-band Transfer
+    'xep_0066',  # Out of Band Data
+    'xep_0077',  # In-Band Registration
 #   'xep_0078',  # Non-SASL auth. Don't automatically load
     'xep_0080',  # User Location
     'xep_0082',  # XMPP Date and Time Profiles
@@ -34,6 +36,7 @@ __all__ = [
     'xep_0128',  # Extended Service Discovery
     'xep_0163',  # Personal Eventing Protocol
     'xep_0172',  # User Nickname
+    'xep_0184',  # Message Receipts
     'xep_0199',  # Ping
     'xep_0202',  # Entity Time
     'xep_0203',  # Delayed Delivery