minor - refresh requirements
minor - refresh requirements

- use CamelCase name of SQLAlchemy* packages
- bcrypt installation was failing on some system like OpenShift because
  the existing six version was outdated. We now pin on on six >= 1.9 to
  avoid the problem.

Change-Id: Id18a4910d8b21e6017f1afe0482cc5f721701fc0

enovance/dci-control-server,redhat-cip/dci-control-server,enovance/dci-control-server,redhat-cip/dci-control-server,goneri/dci-control-server,goneri/dci-control-server,goneri/dci-control-server,goneri/dci-control-server