Specify version of pytz in requirements file to avoid problems with pip >= 1.4, which doesn't install pre-release versions by default. The versioning scheme for pytz is identified by pip as a pre-release version. Refs #627.


git-svn-id: https://svn.apache.org/repos/asf/bloodhound/trunk@1515291 13f79535-47bb-0310-9956-ffa450edef68