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This update primarily drops the legacy Plasma API in favour of using the new APA102 Python library to get right to the point.

Additionally support has been added to disable the LED and Button, which will avoid any GPIO set up for either of these devices if those pins are desired for other add-ons.

• Replace Plasma API with APA102 library
• Add support for setting LED global brightness
• Add support for disabling button and/or LED
• Move packages/requires to setup.config, minimum version now Python 2.7

This release changes Fan SHIM to use the legacy Plasma API, since the Plasma library has introduced breaking changes.

This release implements the polling frequency fix discussed in https://github.com/pimoroni/fanshim-python/pull/6

It also defers polling until a handler has been attached to a button, so code examples not using the buttons will not waste CPU on polling them: https://github.com/pimoroni/fanshim-python/commit/0246d230c5aa4f0ec6bafefedcc8ecf1cbaff9d3

• Fix atexit error for #1

Initial Release