Only filter the generation drop down list when appropriate (drop down is enabled and legal combination). This fixes #25
adding the ui component so that everything compiles
Removed the now unused MultipleArtifactRegistry
Remove the use of MultipleArtefactregistry
moved method getShellDisplay int subclasses
Removed the dependencies from the UI plug-in consearedned with logging
Separated the UI relevant class in a separate clas that can be moved
