the return of the renderer menu, and some fixes for classpath

processing/app/PdeSketch.java

@@ -1098,6 +1098,11 @@ public class PdeSketch {
       externalRuntime = true;
     }
 
+    // if running in opengl mode, this is gonna be external
+    if (PdePreferences.get("renderer").equals("opengl")) {
+      externalRuntime = true;
+    }
+
     // 2. run preproc on that code using the sugg class name
     //    to create a single .java file and write to buildpath