Bug 123939 [Smoke][Regression]Drill through link doesn't work in pdf.
Description: Drill through link doesn't work in pdf. Steps to reproduce: 1. View attached design file url.rptdesign in html/pdf, click the drill though link in the last three image. Result: Drill through link doesn't work in pdf. Some links in html also don't work.
engine/org.eclipse.birt.report.engine.emitter.pdf/src/org/eclipse/birt/report/engine/emitter/pdf/PDFEmitter.java
/**
	 * create a PdfAction
	 * 
	 * @param hyperlink			
	 * @param bookmark
	 * @param target			if target equals "_blank", the target will be opened in a new window,
	 * 							else the target will be opened in the current window.
	 * @return					the created PdfAction.
	 */
	private PdfAction createPdfAction(String hyperlink, String bookmark, String target)
	{
		if ("_blank".equalsIgnoreCase(target)) 
		
		{
			return new PdfAction(hyperlink);
		}
		else
		
		{
			if (null == hyperlink)
			{
				return PdfAction.gotoLocalPage(bookmark, false);
			}
			else
			{
				return PdfAction.gotoRemotePage(hyperlink, bookmark, false, false);
			}
		}
	}
}