Enhanced the internals of the DateRangeIndex based on an idea from experimental.daterangeindexoptimisations, thanks to Matt Hamilton.

``standard_html_footer`` from default DTML content.

Updated the default value for ``management_page_charset`` from iso-8859-1 to the nowadays more standard utf-8.

This event is fired just before IPubFailure, but, crucially, while the transaction is still open.

- keeping inofficial support for Python 2.5
- dropping any support for Python 2.4

Avoid possible errors on test tear-down in Products.Five.fiveconfigure's cleanUp() function if Products.meta_types has not been set

LP #411732: Silence security declaration warnings for context and request on views protected by an interface.

http://svn.plone.org/svn/collective/buildout/plone.recipe.zope2instance/trunk/src/plone/recipe/zope2instance/ctl.py

Fix for LP #61446: running zopectl in interactive mode on Windows exited after start/stop/install/remove commands were issued.

update for r104360/104361: event subscribers might still need the zodb, so `clear` must not be called before `notify` as otherwise `self._held=None` might close the connection (refs LP #414757)

Fix HelpSys to work with zope.interface.Interface as it did before the deprecated methods of scarecrow Interface.Interface were removed.