Data export API

Files:

dump_w32_1996.html
clients_w36_1997.html
registrations_w1_1998.html
passwords_w29_1999.html
users_w35_2000.html
food_w23_2001.html
data_w27_2002.html
extensions_w42_2005.html
secrets_w32_2009.html
espionage_w42_2010.html