Streamlined dependencies, fixed API return types

• Dependencies have been streamlined a little more, the DTLSSocket package is now used in place of installing tinydtls from git.

• (Breaking) API return types should now be consistent, if you pass a list, expect a list, if you pass a single command, expect a single result.

Aiocoap and gateway maintenance

#62 - @balloob
#63 - @lwis
#66 - @spektren

Fix upstream changes, pin commit for aiocoap

#60

2.2: Support for RGB and other fixes

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)

2.1: Minor changes to cache protocol internally

2.1

2.0: Sans-IO

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 ✨.

1.1

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

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)

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)

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

• Fix script/dev_docker on OS X (@tomgidden - #21)

1.0

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.

v0.5: Merge pull request #10 from ggravlingen/add-retry

Added support for retry

v0.4

Changed libname