kb.registerAction(mergeSessionsAction);
selectSessionAction = new SelectSessionAction();
kb.registerAction(selectSessionAction);
importAction = new ImportSessionAction(getSite().getWorkbenchWindow());
kb.registerAction(importAction);
exportAction = new ExportSessionAction(getSite().getWorkbenchWindow());
kb.registerAction(exportAction);
refreshAction = new RefreshSessionAction();
kb.registerAction(refreshAction);
getViewSite().getActionBars().setGlobalActionHandler(ActionFactory.REFRESH.getId(), refreshAction);
propertiesAction = new PropertyDialogAction(getSite(), viewer);