add a salt to the generate_secret function -- that was kinda important right? lol
just pass through to `end` if not POST or GET
make it not use calls to hostname and dig in lua scripts, use haproxy backend resolving instead
improve the template a lot and make it theme-matched to my site and similar to ngx_http_js_challenge robot page
fix various bugs
add on-demand global / per-domain ddos protection enabling
add automatic redirect from captcha page back to the requested source
prettify the captcha page
