When calling several tests in quick succession on our CentOS CI box it was getting "This address already in use" errors. This seemed to fix it for us, strange that it never happened on Windows whilst testing though..

Referencing the stack overflow post that I got the inspiration from: http://stackoverflow.com/a/15278302/724251
Merge branch 'allow_reuse_address' of https://github.com/alexlatchford/Python-Stub-Server into alexlatchford-allow_reuse_address
increment the version