yet another code review iteration

...rtiss/tooling/kernel/extension/IConnectionCompositor.java

.../fortiss/tooling/kernel/extension/IConstraintChecker.java

...el/extension/IEclipseResourceStorageLocationProvider.java

.../fortiss/tooling/kernel/extension/IElementCompositor.java

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

...rg/fortiss/tooling/kernel/extension/IStorageProvider.java

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

...rc/org/fortiss/tooling/kernel/extension/base/package.html

.../kernel/extension/data/IConnectionCompositionContext.java

...s/tooling/kernel/extension/data/IConstraintViolation.java

...ing/kernel/extension/data/IElementCompositionContext.java

...rtiss/tooling/kernel/extension/data/ITopLevelElement.java

.../org/fortiss/tooling/kernel/extension/data/Prototype.java

...rc/org/fortiss/tooling/kernel/extension/data/package.html

...unk/src/org/fortiss/tooling/kernel/extension/package.html

.../fortiss/tooling/kernel/internal/CommandStackService.java

.../tooling/kernel/internal/ConnectionCompositorService.java

...iss/tooling/kernel/internal/ElementCompositorService.java

...g/fortiss/tooling/kernel/internal/PersistencyService.java

...org/fortiss/tooling/kernel/internal/PrototypeService.java