Install MySQL-python with pip in openstack-base container (type source)
Install MySQL-python with pip in openstack-base container (type source)

MySQL-python is required by the Horizon database session cache.

Change-Id: I620767bc10f3316ed1037d86f5f6729066bfcfbd
Closes-bug: #1630559

stackforge/kolla,mrangana/kolla,GalenMa/kolla,dardelean/kolla-ansible,coolsvap/kolla,intel-onp/kolla,openstack/kolla,GalenMa/kolla,nihilifer/kolla,mrangana/kolla,stackforge/kolla,stackforge/kolla,nihilifer/kolla,coolsvap/kolla,rahulunair/kolla,rahulunair/kolla,coolsvap/kolla,openstack/kolla,dardelean/kolla-ansible,dardelean/kolla-ansible,intel-onp/kolla