fix development mode document type

Application/Model/AbstractClasses/pdfdocumentsGeneric.php

@@ -339,7 +339,7 @@ abstract class pdfdocumentsGeneric extends Base implements genericInterface
      */
     public function outputDev(Html2Pdf $oPdf, $sFilename, $target, $html)
     {
-        $sFilename = str_replace('.pdf', '.html', $sFilename);
+        $sFilename = str_replace('.pdf', '.sgml', $sFilename);
 
         switch($target) {
             case 'I': {
@@ -380,7 +380,7 @@ abstract class pdfdocumentsGeneric extends Base implements genericInterface
                 header('Content-Type: application/force-download');
                 header('Content-Type: application/octet-stream', false);
                 header('Content-Type: application/download', false);
-                header('Content-Type: text/html', false);
+                header('Content-Type: text/sgml', false);
                 // use the Content-Disposition header to supply a recommended filename
                 header('Content-Disposition: attachment; filename="'.basename($sFilename).'";');
                 header('Content-Transfer-Encoding: binary');