There has been significant changes to the Shipyard code base
since the last major update to the UCP Health Check Operator.
This patch set is meant to align its implementation with the
rest of the Operators.
It removes the usage of 'urlopen' which can be a security
risk and make use of the python 'requests' module instead.
We are also adding 'timeout' parameters to the other Operators
that are using 'requests.get' as failure to do so can cause
the Operator(s) to hang indefinitely. The default time out
has been set to 30 seconds. It is noted that nearly all production
code should use this parameter in nearly all requests.
Change-Id: I1205aab38ff120cd239c236dc9bdffd1660c9afb
768981df44