Fixed steppers on Windows.

The steppers were being rendered backwards on Windows due to CSS issue.
Fixed.
prevent scrolling of complete document if the view is scrolled to the very top or bottom
Fixed bug in Deletable List.

Fixed issue where sometimes deletable lists became unelectable after
multiple attempts to select and deselect items.
Merge pull request #32 from SimonWaldherr/AdvancedTouchScroll

prevent scrolling of complete document if the view is scrolled to the ve...