v0.6

2018-06-24 v0.6

• make debug output on serial console configurable
• fix Firefox issue in edit channel names (thanks to sidddy)
• add mqtt "sendconfig" command: "cmd/jarolift/sendconfig". the dongle replies with json encoded config data
• check and confirm running with ESP8266 core 2.4.1
• WebUI: enhance layout of system menu, display version
• system menu: serial number prefix is displayed and configurable in hexadecimal now
• system menu: new field: device counter now configurable