build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:1.5.0'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        jcenter()
    }
}

task releaseJar(type: Copy) {
    from( 'build/bundles/release')
    into( 'build/libs')
    include('classes.jar')
    rename('classes.jar', 'engine_' + version + '.jar')
}

task releaseLib(type: Copy, dependsOn: releaseJar) {
    into "../../release"
    from 'libs'
    from 'build/libs'
}

task clean(type: Delete) {
    delete rootProject.buildDir
}