Fixes multiple clicks on Mac OS X with Java 7+

Moving the mouse, even if to the same location, destroys the build-up of the click count and starts a new click. Moving the mouse to "where" in the loop for multiple clicks is also not necessary, since this is already done for the first click and neither "where" nor the actual location of the mouse can change in between the single clicks. This fixes a number of test cases on Mac OS X with Java 7+.