How to enable multidexing with the new Android Multidex support library

Question

I want to use the new Multidex support library to break the method limit for one of my apps.

With Android Lollipop Google introduced a multidex support library that

Answer 1

Multi_Dex.java

public class Multi_Dex extends Application {
    @Override
    protected void attachBaseContext(Context base) {
        super.attachBaseContext(base);
        MultiDex.install(this);
    }
}