mod_rest: Include full_jid property on origin Fixes permission check in disco#info query to your own account, where the 'to' would have been stripped since it equals the account JID, leaving mod_disco passing nil, which triggers an error in module:may()

This module lets you block connections to remote servers at the s2s
level.

``` {.lua}
modules_enabled = {
    -- other modules --
    "s2s_blacklist",

}
s2s_blacklist = {
    "proxy.eu.jabber.org",
}
```