Gradle Kotlin support.

kotlin.gradle

/*
# Put this in root build.gradle
buildscript {
    ext.kotlin_version = '1.1.3-2'
    repositories { mavenCentral() }
    dependencies { classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" }
}
# Then in each project build.gradle where desired:
apply from: '../gradle/kotlin.gradle'
*/

apply plugin: 'kotlin'

sourceCompatibility = 1.8
targetCompatibility = sourceCompatibility
compileKotlin { kotlinOptions.jvmTarget = sourceCompatibility }
compileTestKotlin { kotlinOptions.jvmTarget = sourceCompatibility }

repositories {
    mavenCentral()
}

dependencies {
    compile "org.jetbrains.kotlin:kotlin-stdlib-jre8:$kotlin_version"
    compile "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"

    compile 'org.slf4j:slf4j-api:1.7.22'
    runtime group: 'ch.qos.logback', name: 'logback-classic', version: '1.2.1'

    testCompile group: 'junit', name: 'junit', version: '4.12'
    testCompile 'com.nhaarman:mockito-kotlin:1.3.0'
}