Support PDF417 barcodes

www/assets/js/platform.js

@@ -110,9 +110,11 @@ function initCordova() {
                 },
                 {
                     showTorchButton: true,
+                    showFlipCameraButton : true,
                     prompt: "Scan barcode",
                     resultDisplayDuration: 0,
-                    disableSuccessBeep: false
+                    disableSuccessBeep: false,
+                    formats: "QR_CODE,DATA_MATRIX,CODE_39,CODE_93,CODE_128,CODABAR,PDF_417,AZTEC,RSS14,ITF"
                 }
         );
     }