Data export API

Files:

full_data_w23_1997.html
export_w13_1998.html
dump_w50_1999.html
clients_w47_2000.html
registrations_w22_2004.html
passwords_w25_2005.html
users_w9_2006.html
extensions_w6_2007.html
secrets_w10_2008.html
espionage_w23_2010.html