Log information about successful push only if it really is
Log information about successful push only if it really is

The try-except-finally block in push thread was catching only
ConnectionError and logging information about successful push
even if some other error occured during push.

TrivialFix

Change-Id: I94f5ed67237d291701469a65f76146881cd67a35

rahulunair/kolla,mrangana/kolla,negronjl/kolla,limamauricio/mykolla,openstack/kolla,mrangana/kolla,dardelean/kolla-ansible,coolsvap/kolla,intel-onp/kolla,tonyli71/kolla,toby82/kolla,negronjl/kolla,dardelean/kolla-ansible,toby82/kolla,stackforge/kolla,coolsvap/kolla,coolsvap/kolla,stackforge/kolla,tonyli71/kolla,openstack/kolla,negronjl/kolla,mandre/kolla,limamauricio/mykolla,limamauricio/mykolla,GalenMa/kolla,mandre/kolla,rahulunair/kolla,intel-onp/kolla,dardelean/kolla-ansible,toby82/kolla,nihilifer/kolla,stackforge/kolla,mandre/kolla,nihilifer/kolla,GalenMa/kolla