- "schema" attribute can now be specified directly as a data_form.Form (reparsing it will be avoided in this case)
- new "deserialise" parameter allows deserialisation from unicode strings in sendDataFormItem
- values can now be an iterable or directly the value to use (it will be put in a list automatically in the later case)
- "id" is now put directly in XMLUI's "id" field instea of "_id"
3 new methods are introduced by this patch:
- psSchemaUIGet to get XMLUI from node schema
- psItemsFormGet to get items as XMLUI when we know they are data forms
- psItemFormSend to set item from values when we know it's a node with schema. For this method, schema can be specified, and if it is not it will be retrieved from node (which imply an additional XMPP request)