fixed a bug (misinterpret header string)

Signed-off-by: root <root@ipekatrinadei.ipe.kit.edu>

designer.html

@@ -1331,7 +1331,7 @@ function mysave(data) {
         }
         tmp["header"] = header;
         position[hkey] = tmp;
-        tmp["type"] = header;
+        tmp["type"] = "header";
         //console.log( index + ": " + $( this ).text() );
     });