Added log rotation
Fixed duplicate flags declaration for flags channel
Removed unused spec tag
Removed obsolete schema file
No need to copy from mhuxd.webui.templates -> removed
Changed is-alive interval -> 2 secs, cmd timeout -> 1 sec
Added -l option for initial debug level
Removed unkown keyer type warning
Don't create keyer page for unknown keyers
Do not allow "Add Port" without known keyers available
Added demo mode
Added warning about unimplemented CTS handling upon CTS line change