bug caused by logger: not support binary rowKey!

[JohnHerry]

HBase RowKeys are bytearray, So it support binary rowkeys. But when I use binary rowKey with this PyBase to put data to HBase, there will be error occurred. This problem is triggered by pybase/client.py Line 305
logger.debug(
'Region cache miss! Table: %s, Key: %s', table, key)
...

logger will crash when the key is binary here.

Waiting for bugfix version.