mod_rest: Add more REST-looking way to send stanzas Example: POST /rest/message/chat/juliet@example.net { body: "Hello" } Becomes equivalent to POST /rest { kind: "message", type: "chat", to: "juliet@example.net", body: "Hello" } Sending messages as plain/text also becomes more convenient. IQ stazas are still weird, but we'll do something special for those.

This module lets you block connections to any remote servers not on a
whitelist.

``` {.lua}
s2s_whitelist = {
    "example.org",
}
```