WindowImpl: Fix DEBUG output's method name of doPointerEvent and consumePointerEvent
Bug 800: Windows 7 Touch Event Support for NEWT: Fix Focus and LBUTTON[DOWN|UP] issues

- w/ TOUCH, Win8 may steal focus (KILLFOCUS), quickly grab FOCUS again when on TOUCH operation

- track 'touchDownLastUp', and don't act on LBUTTON[UP|DOWN] and MOUSEMOVE if just lifted last finger

- don't use GetMessageExtraInfo() to distinguish MOUSE/TOUCH, simply use tracked touchDownCount

- Also track mouseInside in TOUCH operation, i.e. true if _all_ fingers are inside,
  otherwise don't send TOUCH event