code reviewed

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

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

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

.../tooling/kernel/extension/base/ConstraintCheckerBase.java

...ooling/kernel/extension/base/ConstraintViolationBase.java

...l/extension/base/MultiViolationConstraintCheckerBase.java

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

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

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

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

...iss/tooling/kernel/internal/ConstraintCheckerService.java

...fortiss/tooling/kernel/internal/DummyTopLevelElement.java

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

.../tooling/kernel/service/IConnectionCompositorService.java

...org/fortiss/tooling/kernel/service/IPrototypeService.java

...rc/org/fortiss/tooling/kernel/utils/EMFResourceUtils.java

...org/fortiss/tooling/kernel/utils/ExtensionPointUtils.java

...src/org/fortiss/tooling/kernel/utils/IdentifierUtils.java

...fortiss/tooling/kernel/utils/KernelModelElementUtils.java

...nk/src/org/fortiss/tooling/kernel/utils/LoggingUtils.java