Fix the two cases of us using old-style classes on Python 2.

Author: gsnedders

html5lib/inputstream.py

@@ -43,7 +43,7 @@ class BufferedIOBase(object):
 charsUntilRegEx = {}
 
 
-class BufferedStream:
+class BufferedStream(object):
     """Buffering for streams that do not have buffering of their own
 
     The buffer is implemented as a list of chunks on the assumption that
@@ -132,7 +132,7 @@ def HTMLInputStream(source, encoding=None, parseMeta=True, chardet=True):
         return HTMLBinaryInputStream(source, encoding, parseMeta, chardet)
 
 
-class HTMLUnicodeInputStream:
+class HTMLUnicodeInputStream(object):
     """Provides a unicode stream of characters to the HTMLTokenizer.
 
     This class takes care of character encoding and removing or replacing