mod_rest: Add XEP-0066 to mapping schema (breaking from previous jsonmap) before: oob_url: http://example.com/ after: oob: url: http://example.com/ desc: optional description Deals with the fact that the name and namespace differs based on whether it's in an iq or message stanza, unlike oob_url

This module blocks configured queries that change server state.

E.g. to make vCard storage read-only:

``` lua
readonly_stores = {
	vcard = { "vcard-temp", "vCard" };
}
```