[orca-list] Update on Orca's branches and Python 3

[Joanmarie Diggs <jdiggs igalia com>]

Hey guys.

It turns out that GNOME on the whole is not quite ready to be just
Python 3. Apparently, having some core GNOME modules be Python 3 based
whilst others remain Python 2 based is also not doable. As a result, I
have already branched Orca for GNOME 3.6. The official GNOME 3.5.x/3.6.x
releases of Orca will be based on Python 2. Master will continue to be
based on Python 3. And I will maintain both branches.

Hope this doesn't cause any confusion. But if it does, you know where to
find me. <smiles>

Take care.
--joanie