Art-Work: Application and button icons as svg files
New icons

Add the new svg icons to the resource file and use the icons in the gui. Delete
the old embedded xpm icons and some unused instructions.

Signed-off-by: Frank Bergmann <github.qtt@frajasalo.de>
Disable the newly cerated settings button

Signed-off-by: Frank Bergmann <github.qtt@frajasalo.de>
Ignore *.pro.user file in git

Signed-off-by: Frank Bergmann <github.qtt@frajasalo.de>
Bug-Fix: In the initial change directory use the QString app_dir variable

This variable is defined per operating system and uses different values for
Linux and Windows.

Signed-off-by: Frank Bergmann <github.qtt@frajasalo.de>
Bug-Fix: for QTime() not working correctly with value of seconds greater than 60

Calculate the hours from the seconds and after that subtract the hours as a value
of seconds from the original seconds.

Add some comments in timer slot function to describe the steps of producing
the current value presented in the gui.

Signed-off-by: Frank Bergmann <github.qtt@frajasalo.de>
explain how to build
putting it under GPL v3, thanks Frank
bump year
Merge remote-tracking branch 'origin/master' into qt5

Signed-off-by: Frank Bergmann <github.qtt@frajasalo.de>