version v1.9.10

Version 1.9.10.20110420. Automatic firmware builds of the current IRT-ESP branch built on 2020-11-04 19:47:47 UTC from commit 3a26c45. Warning, this is a development build and not fully tested. Use at your own risk.

• Added conversion table to correct reported temperatures. The raw values of the iRT bus could have an 8 degree offset.
• Cleaned-up web GUI, only a single boiler is shown (iRT does not support multiple devices). Added outside temp. and burner power.
• Fixed digit overflow bug on warm water value.
• Removed unused items from the 'info' command.
• Added status reporting for the 0xF0 messages (telnet: log s).
• Suppress log message if no logging is active.