[Freedombox-pkg-team] plinth is marked for autoremoval from testing

[Debian testing autoremoval watch]

plinth 0.36.0 is marked for autoremoval from testing on 2018-09-13

It (build-)depends on packages with these RC bugs:
902594: python3-setuptools-git: python3-setuptools-git should depend on python3-setuptools
903524: manuel: manuel FTBFS with Python 3.7 as supported version