This release brings more complete support for mts300 and some 'long standing' issues resolution.

features

• added support for 'Hold action' to the mts line of thermostats (mts200, mts300)
• refined 'calibration' support for mts300 to include humidity calibration
• added support for setting the display temperature unit in thermostat devices
• implemented buttons for smoke alarm muting and testing (#544)
• added support for new msl320cpr 'light.effect' message/payload (#566)
• minor improvements on trace/diagnostics data to expose more consistent informations.

fixes

• fixed the temperature 'stepping' in climates when system units are set °F
• fixed query format to get initial sensor state in ms600 (#517)
• fixed a minor bug in HTTP encryption (maybe influencing #472 #564)