header file QList in GtGui include qevent.h

In qt directory include/QtGui, there is a file named QList. But we can found while opened, it is not include the "qlist.h", but "qevent.h". It's very strange.

It seems that the file QList in QtGui directory should be renamed QEvent.

This will be cause a compile error with attachement project. If we remove or rename QList in QtGui, the correct QList file in QtCore directory will be find and compilation is successed with some warning.