Added DB html2markdown migration script
Added DB html2markdown migration script

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