Python 2.6, Zope 2.13, and GroupServer 1.0 Beta

Richard has been carrying out amazing work this week. The focus of his effort
is upgrading GroupServer so it uses Zope 2.13
<https://projects.iopen.net/groupserver/ticket/361>. By association, this also
involves an upgrade to Python 2.6. (GroupServer currently runs on Python 2.4
and Zope 2.10.)

It *seems* to work. Richard has committed code that allows us to view our
development sites. This includes the posts, the profiles, and it allows us to
make posts. This is a massive step towards getting the next release of
GroupServer out the door: GroupServer 1.0 — Gelato while Viewing the Sights.

Our current plan is to make a release of GroupServer once we know that the new
code does work and is reliable (for us):
  Groupserver 1.0β² — Sundae Savoured
Sundae will be able t o be installed by more people than Semifreddo, as Python
2.6 is more common than Python 2.4.

There are also tentative plans to make another release before GroupServer 1.0:
  GroupServer 1.0β³ — Spaghettieis with a Wafer of Confusion
It will contain Alice's rewrite of the Manage Members page, my rewrite of
Invitations <http://groupserver.org/r/topic/4XtmGVX4SnXjt5yQCgmK1g> and
(probably) the new Leave page
<http://groupserver.org/r/topic/3w5duYfD4JbwtxeHenBBsn>.