For absolute positioned devices on /dev/input/eventX

[GregGarber]

Only tested with the Raspberry Pi "Official Touchscreen"(ft5406) but may work with other touch screens and devices that report position information in absolute coordiantes.

The options reverseX, reverseY, swapXY can be used to deal with screen rotation. The fake3buttons uses the count of touchpoints to fake the behavior of the 3 button mouse, with limited success.