Ignore index totally.

lxml web site, provided by index, is not functional for long time (weeks).
As it is possible to install it directly form pypi (which has a bit of
mirroring) force such way and do not query source website.

component/lxml-python/buildout.cfg

@@ -13,6 +13,7 @@ PATH = ${libxslt:location}/bin:%(PATH)s
 [lxml-python]
 recipe = zc.recipe.egg:custom
 egg = lxml
+index =
 find-links =
   http://pypi.python.org/pypi/lxml/2.2.8
   http://pypi.python.org/pypi/lxml/2.3