IGraph.OnGraphChanged renamed to OnGraphChange as it is not always fired after change
cleanups
Swf.DragDrop is going to be replaced by Xwt.DragDropBackends
StreamThing: give back new stream if old is closed
GeckoWebBrowser: https is not proxied, try to workaround
disable SwfEventController (obsolete)
disable InprocClipboardData, needs Clipboard-pasted-event
GraphItemDeleteAction: fix error (items are not deleted)
SplitView: fix error with focushandling of CurrentDisplay