Now the close in the windowManager is when the closeDone signal is fired

Using the close signal with the special close behaviour caused that some
windows could never be removed from the window list and that other may
be removed too soon.

[VDI-1659]
Change from hasSpecialCloseBehaviour to dontExecuteEventHandlers

Both properties does the same and we only need one.

[VDI-1659]
The build files for the last changes