(feature req) option of usage of jor1k networking relay for network connections

[ayunami2000]

as used in jor1k, v86, and jslinux, the networking relay is great for network connections from the browser. please consider implementing it to cheerpj (it also solves cross origin issues!!)

the public relay is at relay.widgetry.org and the source for it (including how it works) is at https://github.com/benjamincburns/websockproxy