Fix contrail-status for python 2.6 - centos. Also handle
socket.timeout exception in addition to requests.Timeout, CI systest
failed due to the unhandled exception.

Change-Id: I33f070b80e3bcf88a54fb2fa67b947c99624b02d
(cherry picked from commit 60025d4cbd3d6368790c0fd8e3a35b2fdcdb7bd1)
Merge "Fix contrail-status for python 2.6 - centos. Also handle socket.timeout exception in addition to requests.Timeout, CI systest failed due to the unhandled exception."