Merge pull request #120 from khaled-cliqz/master

Add check for null path in releaseCapture

android/src/main/java/fr/greweb/reactnativeviewshot/RNViewShotModule.java

 
     @ReactMethod
     public void releaseCapture(String uri) {
-        File file = new File(Uri.parse(uri).getPath());
+        final String path = Uri.parse(uri).getPath();
+        if (path == null) return;
+        File file = new File(path);
         if (!file.exists()) return;
         File parent = file.getParentFile();
         if (parent.equals(reactContext.getExternalCacheDir()) || parent.equals(reactContext.getCacheDir())) {