archive for the clover website
not named after a character from yotsuba& (sorry)
yotsuba is very cute though
hash post/<board>/<id> ->
string postjson
string sage //y/n
hash thread/<board>/<id> ->
string last_update
string on_page
string reply_number
string posts //<id>,<id>,<id>,...
string img <board>/<tim>/<ext> // binary
set boards -> // all archived boards
string <board>