* Add support for TouchScreen 'Tap Modes'
Left Click, Right Click and Hover.
* Rename OSystem_GP2XWIZ to OSystem_GPH to
start the work on supporting a unified
backend codebase for the GP2X, Wiz and
Caanoo.
* Sort out bugs in Caanoo input code.
* Rework GP2XWiz input code to support
switching new TouchScreen modes.
svn-id: r52619