1.5.3

Added

• Dispatch session closing when using Zeroconf (5b53af7)
• Allow set volume with relative steps count (#273)

Changed

• Improved thread usage (#249, #280)
• Catch and log exceptions happening in command/message handling (352d6e3,
  3229d2c)

Fixed

• Fixed parsing some payloads (f6191ff)
• Fixed double reading of first chunk (e5a8ae7)
• Fixed proxy auth (#274)
• Fixed playback not starting (#277, 26818c6, abde6b6,
  a79e78a)