got extends back in the language -- use it together with super

examples/code.cs

@@ -145,13 +145,13 @@ Animal.prototype.move: meters =>
   alert(this.name + " moved " + meters + "m.").
 
 Snake: name => this.name: name.
-Snake.prototype: Animal
+Snake extends new Animal()
 Snake.prototype.move: =>
   alert('Slithering...')
   super(5).
 
 Horse: name => this.name: name.
-Horse.prototype: Animal
+Horse extends new Animal()
 Horse.prototype.move: =>
   alert('Galloping...')
   super(45).