Explicit complaint about old OpenSSL when testing
Explicit complaint about old OpenSSL when testing

Running the tests with an old version of OpenSSL
results in many tests breaking without any hints
of the real cause. This handles that explictly,
stopping execution whenever the version is older
than 1.0 and exiting with an informative message.

Co-Authored-By: Rodrigo Duarte Sousa <rodrigods@lsd.ufcg.edu.br>
Closes-Bug: 1225084

Change-Id: I55e151d3fb4ddbe5ee4bf64bfdc597b4da73f6bb

sdpp/python-keystoneclient,magic0704/python-keystoneclient,alexpilotti/python-keystoneclient,ging/python-keystoneclient,Mercador/python-keystoneclient,ging/python-keystoneclient,Mercador/python-keystoneclient,klmitch/python-keystoneclient,darren-wang/ksc,sdpp/python-keystoneclient,magic0704/python-keystoneclient,darren-wang/ksc,klmitch/python-keystoneclient,alexpilotti/python-keystoneclient