Bug 163749 Import BIRT runtime package to wtp will leave old birt files.
Description: Import BIRT runtime package to wtp will leave old birt files. Steps to reproduce: Prepare two birt builds. 1. Create a new BIRT Web Project with one build. 2. Use another build to open the same workspace, select the project and click Business Inteligent and Reporting Tools->Import BIRT runtime component. Expected result: Old birt runtime package will be replaced with new runtime package. Actual result: Old birt plugins were kept and new birt jar files are imported. e.g. org.eclipse.birt.report.engine_2.2.0.v20061101-0630.jar org.eclipse.birt.report.engine_2.2.0.v20061107-0635.jar
viewer/org.eclipse.birt.integration.wtp.ui/src/org/eclipse/birt/integration/wtp/ui/internal/wizards/BirtWizardUtil.java
String uri = taglibs[j].getAttribute( "uri" ); 
					String location = taglibs[j].getAttribute( "location" ); 
					
					if ( uri != null && location != null )
					{
						TagLibBean bean = new TagLibBean( uri, location );
						son.put( uri, bean );
					}
				}
				map.put( EXT_TAGLIB, son );
			}
		}
		return map;
	}
	/**
	 * Check if defined project facet is installed.
	 * 
	 * @param dataModel
	 * @param facetId
	 * @return true or false
	 */
	public static boolean isSelectedFacetInstalled( IDataModel dataModel,
			String facetId )
	{
		org.eclipse.wst.common.componentcore.datamodel.properties.IFacetProjectCreationDataModelProperties.FacetDataModelMap modelMap = (org.eclipse.wst.common.componentcore.datamodel.properties.IFacetProjectCreationDataModelProperties.FacetDataModelMap) dataModel
				.getProperty( "IFacetProjectCreationDataModelProperties.FACET_DM_MAP" ); 
		IDataModel facetDataModel = (IDataModel) modelMap.get( facetId );
		if ( facetDataModel == null )
			return false;
		else