Fix possible NPE #4850
fixing #5115
OpenDefinedTermEditorHandler : changed error dialog to warning since there is no exception CdmErrorDialog : changed copy item text to avoid confusion MessagingUtils : cleanup and added MultiStatus errorDialog to solve windows problem (#4416)
Moved all logging and dialog functionality to the new class MessagingUtils. Refactoring code to adapt to above change. Added new custom error dialog - CdmErrorDialog Added runtime exception handling to the ApplicationWorkbenchAdvisor by adding a custom status handler
adding warning dialog on unavailabel DefinedTermEditor
merge-update of trunk and disabling GUI-Control separation
updated handlers to be more consistent and use the new TermEditorInput which stores the in memory list of vocabularies OpenDefinedTermMenu : not used anymore
Committing changes to definedtermeditor after merge from branch