Various changes to the modules.

Also commited the remaining incomplete modules.

modules/sample/Module.cpp

@@ -95,7 +95,7 @@ void OnSquirrelLoad()
 void OnSquirrelTerminate()
 {
     OutputMessage("Terminating: %s", SQSAMPLE_NAME);
-    // Release the current database (if any)
+    // Release the current virtual machine, if any
     DefaultVM::Set(nullptr);
     // Release script resources...
 }