o This directory is searched for 'App.Extensions' lookups.  Thanks to Rodrigo
  Senra for the patch.

LP #143604: Removed top-level database-quota-size from zope.conf, some storages support a quota option instead.

LP #143089: Removed the top-level zeo-client-name option from zope.conf, as it had no effect since ZODB 3.2.

Applied patch from https://bugs.launchpad.net/zope2/+bug/257675, avoiding the mysterious '-C' in request.form

Moved the code handling ZCML loading into the ``Zope2.App`` package. The component architecture is now setup before the application object is created or any database connections are opened. So far the CA was setup somewhat randomly in the startup process, when the ``Five`` product was initialized.