CentOS 7 job is running with python2, which is no longer supported by
nova. Devstack also dropped it's platform tests for CentOS.
Change-Id: I74b04cf6ecd978bfc5fbf3b2c7484a79d28ae826
Run unit tests on the same Python version that the functional
tests are run. This is also the same version that FreeIPA uses.
Change-Id: I810755854c312ecb78b313b88c390b73dc476215
The functional job roles are extended with an option to specify
python version to run with and a new CI job is created.
python-memcached is added to requirements.txt, since it is used in
the default keystonemiddleware configuration.
Change-Id: I0b77b150785a90b411cba4ffc4b89cc67646e2ac
Grzegorz Grasza