remove else after tail call
remove else after tail call

geotagx/geotagx-pybossa-archive,OpenNewsLabs/pybossa,inteligencia-coletiva-lsd/pybossa,harihpr/tweetclickers,PyBossa/pybossa,jean/pybossa,harihpr/tweetclickers,proyectos-analizo-info/pybossa-analizo-info,geotagx/geotagx-pybossa-archive,proyectos-analizo-info/pybossa-analizo-info,CulturePlex/pybossa,inteligencia-coletiva-lsd/pybossa,Scifabric/pybossa,OpenNewsLabs/pybossa,stefanhahmann/pybossa,geotagx/pybossa,geotagx/geotagx-pybossa-archive,Scifabric/pybossa,CulturePlex/pybossa,geotagx/geotagx-pybossa-archive,geotagx/pybossa,stefanhahmann/pybossa,PyBossa/pybossa,CulturePlex/pybossa,proyectos-analizo-info/pybossa-analizo-info,jean/pybossa,geotagx/geotagx-pybossa-archive