Additional changes to work with RelEx2Logic

I thought the original was "in-order", as read from the comment from the now removed printParse in OpenCogScheme.java:

```
/**
 * Print the words in the parse, as made up out of word instances,
 * maintaining the proper word order in the sentence.
 */
public String printParse()
```

Anyway, I can change it next week if you feel it is necessary.