fix: touchquarantine_ms was too short to prevent long click event (simulated as button 2) on android nexus 4
added option to prevent context menu; Note: not preventing contextmenu will result in unfinished gestures as the mouseup event will not be recieved by mousetouch
added touch transform gestures scale and rotate
fix: ignore double touchstart events as seen on nexus 4 and aparently other androids
variable crtlID -> ctrlID renamed
changed output of gesture data in test.html