Case-Class-Generator error - classloader not working after upgrading build.properties to use sbt0.13+ instead of sbt0.12

gistfile1.txt

java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at com.julianpeeters.caseclass.generator.DynamicClassLoader.loadClass(DynamicClassLoader.java:18)
	at com.julianpeeters.caseclass.generator.DynamicCaseClass.<init>(DynamicCaseClass.scala:24)
	at Example$delayedInit$body.apply(TEST.scala:8)
	at scala.Function0$class.apply$mcV$sp(Function0.scala:40)
	at scala.runtime.AbstractFunction0.apply$mcV$sp(AbstractFunction0.scala:12)
	at scala.App$$anonfun$main$1.apply(App.scala:71)
	at scala.App$$anonfun$main$1.apply(App.scala:71)
	at scala.collection.immutable.List.foreach(List.scala:318)
	at scala.collection.generic.TraversableForwarder$class.foreach(TraversableForwarder.scala:32)
	at scala.App$class.main(App.scala:71)
	at Example$.main(TEST.scala:4)
	at Example.main(TEST.scala)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at sbt.Run.invokeMain(Run.scala:72)
	at sbt.Run.run0(Run.scala:65)
	at sbt.Run.sbt$Run$$execute$1(Run.scala:54)
	at sbt.Run$$anonfun$run$1.apply$mcV$sp(Run.scala:58)
	at sbt.Run$$anonfun$run$1.apply(Run.scala:58)
	at sbt.Run$$anonfun$run$1.apply(Run.scala:58)
	at sbt.Logger$$anon$4.apply(Logger.scala:90)
	at sbt.TrapExit$App.run(TrapExit.scala:244)
	at java.lang.Thread.run(Thread.java:724)
Caused by: java.lang.NoClassDefFoundError: scala/Product
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:788)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:631)
	... 29 more
Caused by: java.lang.ClassNotFoundException: scala.Product
	at sbt.classpath.ClasspathFilter.loadClass(ClassLoaders.scala:57)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 32 more