[tryton-debian] python-zeep is marked for autoremoval from testing

[Debian testing autoremoval watch]

python-zeep 2.4.0-1 is marked for autoremoval from testing on 2017-12-26

It (build-)depends on packages with these RC bugs:
880352: python-aiohttp: FTBFS: dpkg-buildpackage: error: dpkg-source -b python-aiohttp-2.2.3 subprocess returned exit status 2