Woo yeah it's another API change to MsgBox()! This splits parent out and makes it a receiver of MsgBox() and MsgBoxError() for the case when you want to show modal to a specific window only. These will eventually return channels, but first I'll need to igure out how to get this working...
Implemented the new MsgBox()/MsgBoxError() behavior on Windows.
Added the new MsgBox() behavior to the GTK+ backend. It /almost/ works right; just needs some more changes...
Whoops, forgot to apply dialogWindow to dialog_unix.go.
Fixed modality issues on the GTK+ MsgBox() changes. The system introduced here has the advantage of scaling out to all other types of dialogs.
Added new MsgBox() behavior on Mac OS X. Now we can finally remove MsgBox() from the TODOs! :D