title: Error in adding dependency for firebase-ui-auth:2.3.0
body: <p>I'm facing this issue since yesterday... I am adding:</p>
  
  <pre><code>//Add Library
  compile 'com.android.support:design:26.1.0'
  compile 'com.firebaseui:firebase-ui:0.2.0'
  compile 'com.google.android.gms:play-services-auth:11.2.2'
  compile 'com.google.firebase:firebase-auth:11.2.2'
  </code></pre>
  
  <p>and the only code left for the app is:</p>
  
  <pre><code>compile 'com.firebaseui:firebase-ui-auth:2.3.0'
  </code></pre>
  
  <p>As soon as I'm adding this I'm getting an error:</p>
  
  <blockquote>
    <p>Error:Execution failed for task ':app:processDebugManifest'.
    Manifest merger failed : Attribute meta-data#android.support.VERSION@value value=(26.1.0) from [com.android.support:design:26.1.0] AndroidManifest.xml:28:13-35
        is also present at [com.android.support:customtabs:26.0.1] AndroidManifest.xml:25:13-35 value=(26.0.1).
        Suggestion: add 'tools:replace="android:value"' to  element at AndroidManifest.xml:26:9-28:38 to override.</p>
  </blockquote>
  
  <p>I've already tried compile 'com.firebaseui:firebase-ui-auth:1.2.0' but no use.</p>
  
  <p>Need some help! Thanks in advance :)</p>