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/actions/ImportBirtRuntimeAction.java
{
		
		private boolean isALL = false;
		private Shell shell;
		/**
		 * default constructor
		 * 
		 * @param shell
		 */
		public ImportOverwriteQuery( Shell shell )
		{
			this.shell = shell;
		}
		/**
		 * Open confirm dialog
		 * 
		 * @param file
		 * @return
		 */
		private int openDialog( final String file )
		{
			final int[] result = {IDialogConstants.CANCEL_ID};
			shell.getDisplay( ).syncExec( new Runnable( ) {
				public void run( )
				{
					String title = BirtWTPMessages.BIRTOverwriteQuery_title;
					String msg = NLS.bind(