- monkey-patch our own monkey-patched idle_call to run events immediatly
rather than adding them to the event queue, and add a fake transport
with a fake socket.
- remove the test file related to xep_0059 as it relies on blocking
behavior, and comment out one xep_0030 test uses xep_0059
- remove many instances of threading and sleep()s because they do
nothing except waste time and introduce race conditions.
- keep exactly two sleep() in IoT xeps because they rely on timeouts
The error bubbles through the event processing loop, breaking it and
hanging the application.
Instead, there is now a .exception(e) method on XMLStream which may
be overridden or reassigned that will receive all unhandled exceptions
(read: not XMPPError) from event and stream handlers.
