Install Python dependencies via PIP in pre_build phase
$OPENHIFT_INTERNAL_IP and $OPENSHIFT_INTERNAL_PORT variables are no
longer valid. Replaced by $OPENHIFT_DIY_IP and $OPENSHIFT_DIY_PORT

ref https://www.openshift.com/page/openshift-environment-variables
typo error
Merge pull request #1 from syntaxsugar/master

foobar