title: Built android library module doesn't have its dependencies inside
body: <p>I built an Android library module which has some dependencies (<code>.aar</code> files inside its <code>libs</code> directory). If I import the built <code>.aar</code> file into another project, its dependencies not resolved.</p>
  
  <pre><code>apply plugin: 'com.android.library'
  
  android {
      compileSdkVersion 23
      buildToolsVersion "23.0.2"
  
  defaultConfig {
      minSdkVersion 16
      targetSdkVersion 23
      versionCode 1
      versionName "1.0"
  }
  buildTypes {
      release {
          minifyEnabled false
          proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
      }
  }
  }
  
  dependencies {
      compile fileTree(dir: 'libs', include: ['*.jar'])
      testCompile 'junit:junit:4.12'
      compile 'com.android.support:appcompat-v7:23.1.1'
      //compile project(':ExoPlayer')
      compile(name: 'ExoPlayer', ext: 'aar')
      compile(name: 'Volley', ext: 'aar')
      compile 'com.danikula:videocache:2.3.4'
  }
  </code></pre>