Tag 0.12.2

mod_smacks: Only track resumable sessions Required due to track_session() having moved here

Merge 0.11->0.12

Tag 0.11.14

util.stanza: Allow U+7F Allowed by XML despite arguably being a control character. Drops the part of the range meant to rule out octets invalid in UTF-8 (\247 starts a 4-byte sequence), since UTF-8 correctness is validated by util.encodings.utf8.valid().

mod_smacks: Disable resumption behavior on s2s Since resumption is not supported on s2s currently, there is no point in allocating resumption tokens. The code that removes entries from session_registry is only invoked for c2s sessions, thus enabling resumable smacks on s2s adds an entry that never goes away.

util.hashring: Support associating arbitrary data with nodes In this API, a 'node' is always a simple text string. Sometimes the caller may have a more complex structure representing a node, but the hash ring is really only concerned with the node's name. This API change allows :add_nodes() to take a table of `node_name = value` pairs, as well as the simple array of node names previously accepted. The 'value' of the selected node is returned as a new second result from :get_node(). If no value is passed when a node is added, it defaults to `true` (as before, but this was never previously exposed).

util.hashring: tests: don't randomize order - they are written in a sequential style

Merge 0.12->trunk

util.json: Accept empty arrays with whitespace (fixes #1782)