Add "or", "and" and "not" as synonyms to "&&", "||" and "!".

From this discussion:
https://groups.google.com/forum/#!topic/osl-dev/nds648OuPvM

Did it not work to leave '!' here and also something in this spot to recognize the "not" word? I find it a little awkward to have the '!' recognized in the "catch-all rule" below.