Minor gradle 0.9 syntax change.

build.gradle

@@ -59,7 +59,7 @@ configure(javaProjects()) {
     }
 
     test {
-        options.fork(forkMode: ForkMode.ONCE, jvmArgs: ["-ea", '-Xms128m', '-Xmx500m', '-XX:MaxPermSize=128m', '-XX:+HeapDumpOnOutOfMemoryError'])
+        jvmArgs = ['-ea', '-Xms128m', '-Xmx500m', '-XX:MaxPermSize=128m']
     }
 
     task bundlor (dependsOn: compileJava) << {