tmp (wokkel/rsm): various improvments: - restored original tmp.wokkel.pubsub.PubSubService._toResponse_items - changed arguments order in RSMRequest.__init__ to have most common arguments first - added __str__ methods - better parsing/toElement - better handling of optional elements/attributes (count/index) - _toResponse_items handler RSM set elements without modifying original pubsub _toResponse_items - renamed parse to fromElement for coherency

Use this module to temporary store files that need to be integrated to other
projects such as Wokkel.

For example, the changeset that introduced this folder adds RSM (XEP-0059)
support to Wokkel. The files in sat.tmp.wokkel are imported over the initial
wokkel files from sat.plugins.__init__.py