Revert to previous redis-py version
Revert to previous redis-py version

OpenNewsLabs/pybossa,stefanhahmann/pybossa,OpenNewsLabs/pybossa,Scifabric/pybossa,PyBossa/pybossa,stefanhahmann/pybossa,Scifabric/pybossa,jean/pybossa,geotagx/pybossa,inteligencia-coletiva-lsd/pybossa,inteligencia-coletiva-lsd/pybossa,jean/pybossa,geotagx/pybossa,PyBossa/pybossa