v0.6.0

• Drop support for python 3.4
• Explicitly specify Linux as only operating system
• Automatically refresh token if expired
• Add brightness management
• Check response is OK before trying to decode JSON from body
• Use id instead of name in discovery
• Device class representing the device
• Get network status in control interface
• Use response from alive device to check if we reached discover timeout
• Provide generator xdiscover() to return all or specific devices
• Support timeout for discovery
• When agent stops stop ping task and processing responses
• Provide close() for UDPClient and use it on DiscoveryInterface.stop()
• Do not continue receiving more data if UDP recv timeouts
• Other bugfixes and improvements:
  • Fix assertions
  • Expose HighControlInterface on package level
  • If ApplicationError is raised, store value of response attribute
  • Allow disable/enable of brightness without value change
  • Update wheel from 0.30.0 to 0.33.1
  • Update pip from 9.0.1 to 19.0.3
  • Add python 3.6 and 3.7 to Travis config