Update pdfReport.php class extends : replace \ls\ by \LimeSurvey\ because white…
Update pdfReport.php class extends : replace \ls\ by \LimeSurvey\ because white page (error 500) on LimeSurvey V. 3.3.0+180209
Update pdfReport.php class extends : replace \ls\ by \LimeSurvey\ because white page (error 500) on LimeSurvey V. 3.3.0+180209