Raise an exception when trying to delete non project objects
Raise an exception when trying to delete non project objects

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