Bug 119331 Library - name space terminology and behavior
During BIRT 2.0 library feature review meeting the following change was decided. - Change the term namespace to 'prefix' - By default use the library name as the prefix ( namespace ); the dialog to input prefix should be prompted only if hte auto generated prefix is not unique.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dnd/InsertInLayoutUtil.java
DataSetItemModel[] columns = DataSetManager.getCurrentInstance( )
				.getColumns( model, false );
		if ( columns == null || columns.length == 0 )
		{
			return null;
		}
		
		
		
		
		TableHandle tableHandle = DesignElementFactory.getInstance( )
				.newTableItem( null, columns.length );
		setInitWidth( tableHandle );
		insertToCell( tableHandle.getHeader( ), columns, true );
		insertToCell( tableHandle.getDetail( ), columns, false );
		tableHandle.setDataSet( model );
		return tableHandle;
	}
	/**
	 * Validates object can be inserted to layout. Support the multiple.
	 * 
	 * @param insertObj
	 *            single inserted object or multi-objects
	 * @param targetPart
	 * @return if can be inserted to layout
	 */
	public static boolean handleValidateInsertToLayout( Object insertObj,
			EditPart targetPart )
	{
		if ( targetPart == null )