unify/qooxdoo — pull request #4 by dominikg (2012-02-27 10:40:47+00:00)
Title: fixed possible null acces in __checkTouchLeave of qx.event.handler.Touch

Altough loc should not be null when __checkTouchLeave is called, we had an errorreport from a customer where the stacktrace indicated that it was null.

In case loc is null, touchleave should not be fired as it cannot be calculated if touch has really left.