Version 2.1.1

only a few small fixes

Version 2.1.0

issues solved: https://github.com/stefankueng/demohelper/milestone/2?closed=1

Version 2.0.2

issues solved: https://github.com/stefankueng/demohelper/milestone/1?closed=1

Version 2.0.1

Alpha-fade the overlay window.

Version 2.0.0

recursive checkout.