Merge remote-tracking branch 'origin/master' into Ice3.7

etc/doxygen/pages/GuiPlugins.dox

source/ArmarXGui/applications/ArmarXGui/ArmarXMainWindow.cpp

...marXGui/gui-plugins/ClockPlugin/ClockWidgetController.cpp

...ins/ObserverPropertiesPlugin/ObserverWidgetController.cpp

...ins/ScenarioManager/controller/ScenarioListController.cpp

...i-plugins/ScenarioManager/gui/applicationdatabaseitem.cpp

...marXGui/gui-plugins/ScenarioManager/gui/scenariomodel.cpp

...ins/StatechartEditorPlugin/StatechartEditorController.cpp

...gui-plugins/StatechartEditorPlugin/test/XmlWriterTest.cpp

...rXGui/gui-plugins/StatechartViewerPlugin/StateWatcher.cpp

...ins/SystemStateMonitorPlugin/SystemStateMonitorWidget.cpp

source/ArmarXGui/interface/WidgetDescription.ice

source/ArmarXGui/libraries/ArmarXGuiBase/PluginCache.cpp

source/ArmarXGui/libraries/ArmarXGuiBase/PluginCache.h

...marXGui/libraries/SimpleConfigDialog/SimpleConfigDialog.h

...marXGui/libraries/WidgetDescription/WidgetDescription.cpp