Bug 200812 Issue when remove one separator setting in viewer.property[0002]
Description: Issue when remove one separator setting in viewer.property Build number:2.2.1.v200708220927 Steps to reproduce: 1. Deploy birt. 2. Open viewer.properties under WEB-INF folder. 3. Delete "viewer.sep.0=," line 4. Start server. 5. Preview report. 6. Export Data, select columns and select "Comma(,)", click OK. Expected result: Comma(,) isn't in the separator list. Actual result: Nothing happened after step6 and no error logs. Error log:n/a
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
}
		return queryString;
	}
	/**
	 * Gets the query parameter string with the give name and value.
	 * 
	 * @param paramName
	 * @param value
	 * @return
	 */
	public static String getQueryParameterString( String paramName, String value )
	{
		StringBuffer b = new StringBuffer( );
		b.append( PARAMETER_SEPARATOR );
		b.append( paramName );
		b.append( EQUALS_OPERATOR );
		b.append( value );
		return b.toString( );
	}
	/**
	 * Get report title.
	 * 
	 * @param request
	 *            http request
	 * @return report title
	 */
	public static String getTitle( HttpServletRequest request )
	{
		String title = getParameter( request, PARAM_TITLE );
		if ( title == null )