KNIFE when a verb is required. Add AUXVERB for "make", "move",
"climb" (as in "make love", "climb up") and ignore AUXVERB as a verb,
going on to the next word, instead of treating these words as
adjectives. When creating new verbs from "put on", "put down", "take
off", mark them as type VERB. Mostly from Paul Janzen
<pjanzen@foatdi.harvard.edu>.
Define a constant WORDLEN. Always use this constant and NWORD where
appropriate.
Use NWORD - 1 in battlestar.c to avoid off-by-one error.
Increment wordnumber after the INVEN verb to allow it to be followed
by a comma and other actions.
Avoid overflowing elements of the words array if input words are too
long.
Parse "," as AND except when followed by a verb, to allow such
constructions as "take foo, bar, and baz". Trim AND AND which may
occur from the ", and" in such a list.
Avoid crashes from EVERYTHING in the wrong place by moving it to the
start of OBJECT AND EVERYTHING and NOUNS AND EVERYTHING sequences, and
trimming EVERYTHING AND EVERYTHING.