required a few changes to impln_declns

removed print/write option - always written;
opt = TRUE by default; added -n "no optimize" option..

JustLikeThis :-)

all typenames now capitalized;
this ties in with the change to m2decs.c that replaced
things like {type}_is_{shape} with {type}Is{shape} -
so it looks better if type and shape names are capitalized

renamed GetKind{Type} -> {Type}Kind;
called the enumated type KindOf{Type};
had to use various nasty VAL/ORD gubbins to make it all work

also moved verbose and opt into optimize.[ch]

grammar revised, EXPORT and GLOBAL sections added,
types surrounded by TYPE { .. } brackets
caused changes to upper parse procs

moved MUSTBE up above first proc;
lined up an '=' somewhere..

put casts on all uses of NULL to shut lint up;
expected->error, removed "expected" word from default message,
so all calls to expected (and the macro MUSTBE) have expected
added

updated this to reflect that

changed idtree type (leaf now has string and intlist..)

and added readnextline for export and global reading..

also ungettok() was still called pushbacktok() in the prototypes

added exports and globals sections to the parse language..

split { onto new lines.

used fputs instead of fprintf for efficiency
added if( print ) checks.
and print and verbose as public variables (set by main)

and used instead of some printfs.
added print_shape to simplify things a teensy weensy bit.