mod_restrict_xmpp: Treat archive query as a read despite using iq-set
XEP-0313 uses iq-set to initiate a query, but unlike many other uses of
iq-set, this does not mutate anything on the server, so it should not be
treated as a write request.
2c07bcf56a36d6e74dc0f5422e89bd61f4d31239 0.8-diverge
1656d4fd71d07aa3a52da89d4daf7723a555e7dd last-google-code-commit