Added donation section in README.md.
Update README.md
Added tip4commit to README.
Changed how ScrollDetector processes touches.

Changed ScrollDetector so that it does not consume the move touch event
unless it triggers a scroll start and changed it so that up touch events
are not consumed unless a scroll was already in progress. This allows
entities to still receive touch events even if they are inside a
ScrollDetector touch area.
Changed how ScrollDetector processes touches.

Changed ScrollDetector so that it does not consume the move touch event
unless it triggers a scroll start and changed it so that up touch events
are not consumed unless a scroll was already in progress. This allows
entities to still receive touch events even if they are inside a
ScrollDetector touch area.
Added isScrolling() to ScrollDetector.
Updated nothing.
Fixed conflict