mod_rest: Improve logging of results from callback startup probe Especially interested in logging 500 status codes and their errors, to diagnose problems with the callback API.

mod_rest: Support parameters in callback URL E.g. rest_callback_url = "http://myapi.example:5000/api/{kind}/{type}" which results in e.g. requests to /api/message/chat Allows using path routing in web frameworks for dispatch instead of having to pick apart the payload to further dispatch it.

mod_rest/README: Mention the OPTIONS probe fired at the callback ... in passing. Should be documented better. But not this day! This day, I commit features!

mod_rest: Improve error handling during format mapping Prevents e.g. a nil, error return going directly into e.g. json encoding, resulting in "null" being returned. Further handling improvements down the line is needed.

mod_rest: Catch and coerce errors in echo endpoint This should ensure problems in encode() are reported back

mod_rest: Move most of XEP-0432 handling into JSON mapping schema The pre- and post-processing is still needed to encode/decode the JSON since util.datamapper can't (currently) do this.

mod_rest/jsonmap: Fix indentation

mod_conversejs: Bump Copyright year Mostly to trigger a rebuild of the .rock

mod_conversejs: Remove plugin installer dependency on mod_bookmarks It's available with Prosody 0.12+ already, 0.11 has no installer.

mod_register_web: Include HTML templates in rock (thanks unbunt) Makes the module usable with the new plugin installer in Prosody 0.12