Bug 184568 Insert menu error when switch layout tab[00]
Description: Insert menu error when switch layout tab[00] Step: 1.Open a report 2.Switch Master Page( or other tab ) 3.Switch Layout Page 4.Click insert menu Acutal result: The selection in insert menu is gray Exception result: Can select the selection in insert menu
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/editors/DesignerActionBarContributor.java
Messages.getString( "DesignerActionBarContributor.element.InsertRowBelow" ) ), 
			null,
			new RegisterActions( InsertColumnLeftAction.ID,
					Messages.getString( "DesignerActionBarContributor.element.InsertColumnLeft" ) ), 
			new RegisterActions( InsertColumnRightAction.ID,
					Messages.getString( "DesignerActionBarContributor.element.InsertColumnRight" ) ), 
			null,
			new RegisterActions( MergeAction.ID,
					Messages.getString( "DesignerActionBarContributor.element.merge" ) ), 
			new RegisterActions( SplitAction.ID,
					Messages.getString( "DesignerActionBarContributor.element.split" ) ), 
			null,
			new RegisterActions( CreatePlaceHolderPartAction.ID,
					Messages.getString( "CreatePlaceHolderAction.text" ) ),
			new RegisterActions( RevertToReportItemPartAction.ID,
					Messages.getString( "RevertToReportItemAction.text" ) ),
			null,
			new RegisterActions( AddGroupAction.ID,
					Messages.getString( "DesignerActionBarContributor.element.group" ) ), 
	};
	private static final RegisterActions[] dataActions = new RegisterActions[]{
			new RegisterActions( NewDataSourceAction.ID,
					Messages.getString( "designerActionBarContributor.menu.data-newdatasource" ) ),
			new RegisterActions( NewDataSetAction.ID,
					Messages.getString( "designerActionBarContributor.menu.data-newdataset" ) ),
	};
	private static final RegisterActions[] parameterActions = new RegisterActions[]{
			new RegisterActions( NewParameterAction.INSERT_SCALAR_PARAMETER,
					Messages.getString( "ParametersNodeProvider.menu.text.parameter" ) ),
			new RegisterActions( NewParameterAction.INSERT_CASCADING_PARAMETER_GROUP,