title: how to update com.android.application plugin?
body: <p>I'm getting this message:</p>
  
  <pre><code>Plugin is too old, please update to a more recent version,
  or set ANDROID_DAILY_OVERRIDE environment variable to
  "a9d6c794295e89d95704157e2ed8fd55ffd2765c"
  </code></pre>
  
  <p>and:</p>
  
  <pre><code>C:\path\mobile\build.gradle
  Error:(1) A problem occurred evaluating project ':mobile'.
  Failed to apply plugin [id 'com.android.application']
  Could not create plugin of type 'AppPlugin'.
  </code></pre>
  
  <p>top build.gradel file:</p>
  
  <pre><code>buildscript {
      repositories {
          jcenter()
      }
      dependencies {
          classpath 'com.android.tools.build:gradle:1.3.0-beta1'
          classpath 'com.google.gms:google-services:1.3.0-beta1'
  
          // NOTE: Do not place your application dependencies here; they belong
          // in the individual module build.gradle files
      }
  }
  
  allprojects {
      repositories {
          jcenter()
      }
  }
  </code></pre>
  
  <p>Basically, I don't know how to update that com.android.application plugin.</p>