Data export API

Files:

full_data_w35_1997.html
export_w29_1998.html
dump_w22_1999.html
registrations_w30_2000.html
passwords_w42_2002.html
users_w50_2003.html
food_w13_2004.html
data_w39_2005.html
extensions_w15_2006.html
secrets_w38_2010.html