a simple regression test.

I chose semantics that make all variables defined in outer scopes
(including globals) visible as locals, unless overridden by assignment
in inner scope.

http://dev.zope.org/Wikis/DevSite/Projects/ZPT/FrontPage

Added check for 'FORCE_PRODUCT_LOAD' to bits which try to detect whether we're a ZEO client or not in order not to skip product-loading tasks.  This has the consequence that a ZEO client with the "ZEO_CLIENT" env var set will cause product loading tasks to occur iff his "FORCE_PRODUCT_LOAD" environment var is set as well.

a bug that caused ExtensionClasses with __call_method__ hook to fail
to call unbound CMethods.  Thanks!

case, the ComputedAttribute object does a simple getattr. This is a
simple way to set up aliases. For example::

  class foo:

     spam=ComputedAttribute('eggs')

is equivalent to:

  class foo:

     spam=ComputedAttribute(lambda self: self.eggs)

Note that the simple alias version also avoids a function
call.