Updated TODO.
Fixed the test for the route handler. Made it point to httpbin instead of github.
Fixed route.
Changed the signature of DeproxyEndpoint.__init__ and add_endpoint to accept a single port parameter. This is much better.
Updated HISTORY.
Updated HISTORY.
Merge branch 'prep-0.6' into develop
Updated HISTORY.
Updated docs.
Updated TODO.
Merge branch 'endpoint-name-port-2' into develop

Conflicts:
	HISTORY.rst
Added a default_handler parameter to the add_endpoint method and to DeproxyEndpoint's __init__ method. Also docstrings.
Renamed default_handler function to simple_handler, so it doesn't get confused with other default_handler parameters and attributes.
Added a test for endpoint default_handler.
Added the endpoint's default_handler to the handler resolution procedure.
Expanded tests for endpoint default handler.
Added tests for Deproxy default_handler.
Added a default_handler parameter to Deproxy.__init__, and added it to the handler resolution procedure.
Renamed the delay function's handler_function parameter to next_handler.
Renamed handler_function to handler.