Fix for riak per bucket replication settings encoding in protocol buffers. Codec tried to convert to python notation instead of protobuffers

Author: Vitaly Shestovskiy

riak/transports/pbc/codec.py

@@ -295,7 +295,7 @@ def _encode_bucket_props(self, props, msg):
                     else:
                         setattr(msg.props, prop, value)
         if 'repl' in props:
-            msg.props.repl = REPL_TO_PY[props['repl']]
+            msg.props.repl = REPL_TO_PB[props['repl']]
 
         return msg