remove search, orders, sort querystring

remove search, orders, sort querystring from model.
use these thing by set $option instead.
remove search, orders, sort querystring

remove search, orders, sort querystring from model.
use these thing by set $option instead.
add comment available options.
remove search, orders, sort querystring

remove search, orders, sort querystring from model.
use these thing by set $option instead.
change credit msg.
delete unnecessary files
version 1.5.4