build.gradle

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

	buildscript {
			ext.kotlin_version = '1.1.2-3'
			repositories {
					jcenter()
			}
			dependencies {
					classpath 'com.android.tools.build:gradle:2.3.2'
					classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
			}
	}

	allprojects {
			repositories {
					jcenter()
					mavenCentral()
					maven { url 'https://maven.google.com' }
			}
	} 

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