OLA 0.9.1 Released

[Simon Newton]

As usual, .debs and mac packages will follow shortly.


Features:
* Pretty print IPV4 addresses within the Python RDM code.
* Add some additional slot definitions and status messages.
* Add a timestamp to model data filenames so they're unique.
* Allow OSC ports to be looped.
* Add the ability to reload plugins via RPC.
* Added a plugin which uses the onboard UART.
* Added a Python fade controller demo.

API:
* Change GetIdentifyMode to GetIdentifyDevice in the RDM API to clarify it's
the IDENTIFY_DEVICE PID not the newer IDENTIFY_MODE one.

RDM Tests:
* Added the inter-test delay option to the Web UI.
* Show transaction numbers in the responder tests to aid debugging
* Don't warn about unknown slot definitions if they are manufacturer ones
* Added a number of missing Get...WithData tests.

Bugs:
* Fix sensor numbering from 0 on web UI so it matches CLI
* Fix the minimum and maximum level supported RDM tests
* Stop the Python client throwing an AttributeError if the universe
doesn't exist.
* Ensure the RDM Model Collector works if the fixture doesn't have
personality descriptions.
* Only try and fetch supported params for manufacturer PIDs in the
model collector.
* Fix an issue with strings in hash maps on OS X 10.5
* Ensure Rpc_pb2.py is always built.
* Fix the recent code changes to work with FreeBSD, NetBSD and OpenBSD
* Stop ola_trigger segfaulting at startup - #409

Internal:
* Convert stringstream to ostringstream where possible
* Tidy up copyright messages so we're Debian compliant.
* Correct FSF address within licenses
* Removed #ifdefs from the installed headers.
* Clean up the ShowNet code.
* Added a JSON & JSON Schame parser.
* Documented the RPC format.
* First changes required to run on Windows.