add support for python 3 to genshi.filters: * minor changes to track encoding=None API change in core genshi modules. * renamed genshi/filters/tests/html.py to test_html.py to avoid clashes with Python 3 top-level html module when running tests subset. * did not rename genshi/filters/html.py. * i18n filters: * ugettext and friends are gone in Python 3 (and only gettext and friends exist and they now handle unicode) * Some \ line continuations inside doctests confused 2to3 and so were removed them. * Testing picked up a problem (already present in trunk) where Translator.__call__ could end up defining gettext as an endlessly recursive function. Noted with a TODO.

--- a/genshi/filters/tests/__init__.py
+++ b/genshi/filters/tests/__init__.py
@@ -15,9 +15,9 @@
 import unittest
 
 def suite():
-    from genshi.filters.tests import html, i18n, transform
+    from genshi.filters.tests import test_html, i18n, transform
     suite = unittest.TestSuite()
-    suite.addTest(html.suite())
+    suite.addTest(test_html.suite())
     suite.addTest(i18n.suite())
     if hasattr(doctest, 'NORMALIZE_WHITESPACE'):
         suite.addTest(transform.suite())