style: stop using deprecated getargspec for rpc


py2to3: migrate setup.py


style: remove new-style class code from the Python2 days


demo: properly escape screen command parameters



bug: fix wrong sending of HMAC header causing test failure


py2to3: revert changes from 90a624f0 in debian/control and re6stnet.spec

setup: indicate minimum Python versions

doc: update dependencies in readme


style: revert pep8 changes