Fix typo and unbound variable
Fix typo and unbound variable

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