Fixes for Qt6.9 and gcc.
Fixed some warnings
Port to Qt6, initial version
Normal icon as tray icon (instead of date).
Merge branch 'master' of https://git.code.sf.net/p/jetimesheet/code
Allow resize of columns.
Version 2020-4, use wheel event for scrolling (nor for changing the combobox value)
Show time of day also in hh::mm-format.