intermediate state -- how to reach Workflow models?
dynamic resolution of WfE eContainer (solves problems of action in action in action ...)
remove unused and problematic scope provider
intermediate state -- how to reach Workflow models?
dynamic resolution of WfE eContainer (solves problems of action in action in action ...)
remove unused and problematic scope provider
new Event validators (not working yet)
removed outdated scopes
definition / referencing of events
Merge remote-tracking branch 'origin/feature/multiple-controller-scoping' into feature/multiple-controller-scoping

Conflicts:
	de.wwu.md2.framework/src/de/wwu/md2/framework/scoping/MD2ScopeProvider.java
	de.wwu.md2.framework/src/de/wwu/md2/framework/validation/ControllerValidator.xtend
Restructured the lists to single elements. All contentElements of all
ModelLayers are now combined in one new modelLayer of the respective type
Preprocessor - wfe changes within process chain
Fixed the creating of the autogenerators set
Fixed preprocessing method replaceDefaultProviderTypeWithConcreteDefinition
Fixed preprocessing method createStartUpActionAndRegisterAsOnInitializedEvent
Fixed preprocessing method transformEventBindingAndUnbindingTasksToOneToOneRelations
Fixed preprocessing method calculateParameterSignatureForAllSimpleActions
Fixed preprocessing method duplicateSpacers
workflow event scoping now works!
Change access to Attributes in transformImplicitEnums