------------------------------
Still not enough entropy on Travis CI, let's see if we can work around that...
I tried to fix this using ``rng-tools`` in 3c372c3097f_ but that didn't work
out due to the way OpenVZ works. This commit introduces a more general approach
that will hopefully work on OpenVZ and other virtualized environments, we'll
see...
.. _Release 1.26.3: https://github.com/xolox/python-deb-pkg-tools/compare/1.26.2...1.26.3
.. _3c372c3097f: https://github.com/xolox/python-deb-pkg-tools/commit/3c372c3097f