Infrastructure: Use more-recent NetLogo version

Author: TheBizzle

build.sbt

@@ -14,4 +14,4 @@ netLogoTarget :=
 javacOptions ++= Seq("-g", "-deprecation", "-Xlint:all", "-Xlint:-serial", "-Xlint:-path",
   "-encoding", "us-ascii")
 
-netLogoVersion := "6.0.2-M1"
+netLogoVersion := "6.0.4-9328ba6"