This change updates the Travis CI configuration to support running
the PyKMIP integation test suite. A custom run.sh script is added
which conditionally runs tox based on an environment flag set in
.travis.yml. If integration tests are activated, the test VM will
be prepped for running the PyKMIP server; this includes creating
/etc/pykmip content, like pykmip.conf and server.conf, along with
a basic certificate to use for both the client and server.
Peter Hamilton