Update cleaners.py

Author: cdhigh

readability/cleaners.py

@@ -1,6 +1,9 @@
 # strip out a set of nuisance html attributes that can mess up rendering in RSS feeds
 import re
-from lxml.html.clean import Cleaner
+try:
+    from lxml.html.clean import Cleaner
+except ImportError:
+    from lxml_html_clean import Cleaner
 
 bad_attrs = ["width", "height", "style", "[-a-z]*color", "background[-a-z]*", "on*"]
 single_quoted = "'[^']+'"