Bug 150601 Drillthrough link from pdf(frameset) should link to frameset servlet instead of run.
Description: Drillthrough link from pdf(frameset) should link to frameset servlet instead of run. Steps to reproduce: 1. New a report 2. Insert a label and define a drill through link to other report 3. Preview in Web viewer, click Print as PDF button in viewer toolbar 4. Click drill through link in pdf Expected result: Target report opens through frameset sevlet instead of run servlet. Because the pdf is displayed through frameset servlet. Actual result: Target report opened through run sevlet
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ViewerHTMLActionHandler.java
link.append( ParameterAccessor.getQueryParameterString(
						ParameterAccessor.PARAM_FORMAT, format ) );
			}
			
			if ( action.getParameterBindings( ) != null )
			{
				Iterator paramsIte = action.getParameterBindings( ).entrySet( )
						.iterator( );
				while ( paramsIte.hasNext( ) )
				{
					Map.Entry entry = (Map.Entry) paramsIte.next( );
					try
					{
						String key = (String) entry.getKey( );
						Object valueObj = entry.getValue( );
						if ( valueObj != null )
						{
							
							
							String value = ParameterValidationUtil
									.getDisplayValue( valueObj );
							link
									.append( ParameterAccessor
											.getQueryParameterString(
													URLEncoder
															.encode(
																	key,
																	ParameterAccessor.UTF_8_ENCODE ),
													URLEncoder
															.encode(