fix(android): improper cache path construction during image manipulation (apache#905)

Author: breautek

src/android/CameraLauncher.java

@@ -1002,7 +1002,7 @@ private Bitmap getScaledAndRotatedBitmap(String imageUrl) throws IOException {
                 // Generate a temporary file
                 String timeStamp = new SimpleDateFormat(TIME_FORMAT).format(new Date());
                 String fileName = "IMG_" + timeStamp + (getExtensionForEncodingType());
-                localFile = new File(getTempDirectoryPath() + fileName);
+                localFile = new File(getTempDirectoryPath(), fileName);
                 galleryUri = Uri.fromFile(localFile);
                 writeUncompressedImage(fileStream, galleryUri);
                 try {