Fixed window state initialization

src/QGCCore.cc

src/apps/mavlinkgen/ui/XMLCommProtocolWidget.h

src/uas/UASInterface.h

src/ui/HUD.cc

src/ui/HUD.h

src/ui/MainWindow.cc

src/ui/MainWindow.h

src/ui/QGCDataPlot2D.h

src/ui/designer/QGCToolWidget.cc

src/ui/designer/QGCToolWidget.h

src/ui/linechart/Linecharts.cc

src/ui/linechart/Linecharts.h

src/ui/map/QGCMapTool.h

src/ui/map3D/QGCGoogleEarthView.cc

src/ui/map3D/QGCGoogleEarthView.h