major refactorings

.../fortiss/tooling/base/ui/dialog/MessageUtilsExtended.java

...org/fortiss/tooling/base/ui/editor/DiagramEditorBase.java

...oling/base/decompose/HierarchicElementCompositorBase.java

...tiss/tooling/base/library/ModelElementLibraryService.java

...e/trunk/src/org/fortiss/tooling/base/library/package.html

...trunk/src/org/fortiss/tooling/base/utils/SystemUtils.java

...ase/trunk/src/org/fortiss/tooling/base/utils/package.html

...tooling/kernel/ui/extension/base/PropertySectionBase.java

...ui/internal/properties/ElementWithURIPropertySection.java

...fortiss/tooling/kernel/ui/internal/views/LibraryView.java

...ernel/ui/internal/views/LibraryViewDragSourceAdapter.java

...ernel/ui/internal/views/NavigatorTreeContentProvider.java

...s/tooling/kernel/ui/internal/views/NavigatorViewPart.java

...fortiss/tooling/kernel/ui/util/EObjectSelectionUtils.java

org.fortiss.tooling.kernel/trunk/model/kernel.ecore

org.fortiss.tooling.kernel/trunk/model/kernel.genmodel

org.fortiss.tooling.kernel/trunk/plugin.xml

...tiss/tooling/kernel/extension/ILibraryElementHandler.java

.../fortiss/tooling/kernel/extension/IPrototypeProvider.java

.../tooling/kernel/extension/base/PrototypeProviderBase.java