Bug 116377 container's data set should be list in dynamic image expression builder
description: container's data set should be list in dynamic image expression builder steps to reproduce: 1. drag an image to one cell of table 2. choose dynamic image 3. click on expression builder.... actual result: no data set list in the expression builder expected result: container's data set should be list in dynamic image expression builder
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/palette/DesignerPaletteFactory.java
* Creates palette categories and returns the category list
	 * 
	 * @return Returns the categories list
	 */
	static List createCategories( )
	{
		List categories = new ArrayList( );
		categories.add( createContentCategory( ) );
		return categories;
	}
	/**
	 * Creates BIRT Normal specified categories and items.
	 * 
	 * @return Palette Container containing BIRT Normal specified categories
	 */
	private static PaletteContainer createContentCategory( )
	{
		PaletteCategory category = new PaletteCategory(
				IPreferenceConstants.PALETTE_CONTENT, REPORT_ITEMS_LABEL, null );
		List entries = new ArrayList( );
		CombinedTemplateCreationEntry combined = new ReportCombinedTemplateCreationEntry(
				ELEMENT_NAME_LABEL,
				TOOL_TIP_LABEL_REPORT_ITEM,
				IReportElementConstants.REPORT_ELEMENT_LABEL,
				new ReportElementFactory(
						IReportElementConstants.REPORT_ELEMENT_LABEL ),
				ReportPlatformUIImages
						.getImageDescriptor( IReportGraphicConstants.ICON_ELEMENT_LABEL ),
				ReportPlatformUIImages
						.getImageDescriptor( IReportGraphicConstants.ICON_ELEMENT_LABEL ),