title: Libpng vulnerability issue even after updating opencv library
body: <p>I am using following dependencies in my app :</p>
  
  <pre><code>dependencies {
  compile fileTree(include: '*.jar', dir: 'libs')
  compile project(':zxing-2.3.0')
  compile project(':ColorPickerView')
  compile project(':DropboxChooserSDK')
  compile project(':PullToRefreshLibrary')
  compile project(':volley')
  compile 'com.android.support:recyclerview-v7:24.0.0-alpha2'
  compile 'com.facebook.android:facebook-android-sdk:4.5.0'
  compile 'com.google.android.gms:play-services-analytics:8.4.0'
  compile 'com.google.android.gms:play-services-gcm:8.4.0'
  compile 'com.android.support:design:23.3.0'
  compile 'com.github.ctodobom:OpenCV-3.1.0-Android:-SNAPSHOT'
  }
  </code></pre>
  
  <p>I was using opencv library version 2.4.8 and google play console rejected my app saying libpng vulnerability issue. 
  So i updated opencv library to 3.1.0 and still the google play console is rejecting saying the same libpng vulnerability issue.</p>
  
  <p>So i am confused if any other library from above is using libpng library? </p>
  
  <p><strong>EDIT:</strong></p>
  
  <p>I created a sample project which has the above libraries and for testing purpose I downgraded opencv to 2.4.8 (which has libpng issue) and what can i say, it is not giving any warning about libpng, it is getting published. So where exactly is the problem?</p>