This updates all Python packages that download their source from PyPi to
use pypi.mk.

This will allow future improvements/changes to pypi.mk to affect all
relevant packages.

This also makes it easier for future Python packages to start using
pypi.mk, when it's clear how it is used in existing packages.

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

Signed-off-by: Jan Pavlinec <jan.pavlinec@nic.cz>

Radicale 2.x adds support for many new clients,
bug-fixes, etc so add v2 of this application.

We do it as a separate package for those not
ready to switch (it's not an straight inplace
upgrade from 1.x).

We do however CONFLICT with 1.x as they can't
be run side-by-side on the same host (without
containers for somesuch).

Signed-off-by: Daniel F. Dickinson <cshored@thecshore.com>