New in 1.5.0

Support for SmartThings webhook to support real-time update of device state changes. Support for webhooks is in closed beta at
the moment, but will be made available soon.

• If a sensor service doesn't return a valid value, it will be removed from the device.
• Fixed some state update management in the Thermostat service.

• Fixed some bugs with thermostat support. Note that this one is a tough one to test with one thermostat. Looking for ongoing
  feedback from everyone.

Added support for thermostats.

Eliminate duplicate status requests sent to Smartthings for the same device which may create errors.

• Re-added support for Window Shades (Window Coverings) that support the windowShadeLevel capability.

Fixed problem where light service wasn't detecting a failed command.

• Fixed issue with some lights could not handle setting hue and saturation individually

• Improvements to timing issued resulting in switch status flip flopping after a command is sent.

• Fixed an issue where a valve wasn't detected unless it has a switch capability
• Fixed issue where switches and other items momentarily switch back to previous state when activated.