title: Instant Run disabled for multidexed application
body: <p>Using Android Studio 2.0 with gradle 2.0.0, I see the following error:</p>
  
  <blockquote>
    <p>Instant Run is disabled:
             Instant Run does not support deploying build variants with multidex enabled, to a target with API level 20 or below.
             To use Instant Run with a multidex enabled build variant, deploy to a target with API level 21 or higher.
             (Don't show again)</p>
  </blockquote>
  
  <p>Why am I not able to use Instant Run?</p>