Data export API

Files:

export_w36_1996.html
clients_w4_1999.html
registrations_w33_2000.html
passwords_w8_2001.html
users_w1_2002.html
food_w21_2004.html
data_w36_2005.html
extensions_w13_2007.html
secrets_w50_2008.html
espionage_w43_2009.html