This updates the Python 2 and 3 versions of each package to share the
same title field. (For packages that only had this change, their
PKG_RELEASE were not incremented.)

This also updates the package title, url and source urls, where
necessary.

Signed-off-by: Jeffery To <jeffery.to@gmail.com>

Signed-off-by: Rosen Penev <rosenp@gmail.com>

Signed-off-by: Jeffery To <jeffery.to@gmail.com>

Signed-off-by: Jeffery To <jeffery.to@gmail.com>

python3 variant

Renaming the package is needed to allow for a Python 3 variant
(python3-zope-interface). Packages that depend on this (only twisted)
also have their dependencies adjusted.

Signed-off-by: Jeffery To <jeffery.to@gmail.com>