Pytradfri

Update README.md with note about cython3 (45, Decker108)
Set global UTF-8 locale (47, matemaciek)
Support for setting colour in Kelvin for the whole spectrum (48, matemaciek)
Fix git URL in aiocoap.sh (49, cosmix)
Add sRGB to xyY conversion (51, r41d)

This release includes a number of changes to the way commands are performed, please refer to the updated documentation, and updated example files to learn more!

This release also includes support for async functionality :sparkles:.

- Remove passing in an unneeded identity to `coap-client` (ws141 - 15)
- Add basic support for smart tasks (ggravlingen - 18)

python
tasks = gateway.get_smart_tasks()
tasks[0].repeat_days_list


- Always pass url as last argument to fix issue on OS X (viernullvier - 19)
- Add support for observing devices and groups (balloob - 20)

python
def change_listener(device):
print(device.name + " is now " + str(device.light_control.lights[0].state))

lights[0].observe(change_listener)


- Add `set_state` and `set_dimmer` to groups (balloob - 20)

python
group.set_state(0)
group.set_dimmer(130)


- Fix `script/dev_docker` on OS X (tomgidden - 21)

First official release.

Breaking change with the 0.x series: `coap-client` now has to be compiled without debug output. (Thanks to rubenbe - 12). See our [updated installation instructions](https://github.com/ggravlingen/pytradfri#installation).

Added support for retry