TODO:
-=-=-
done	- byte images not being read correctly
done	- add a $FSIZE (binary file size) and $BSWAP (byte swapping on
done	  current host) operand to database
done	- functions to be done:
done		ctocc()		ctowrd()
done		parameter()	default()
???	- an error when processing an image shouldn't interrupt the rest
	  of the list.
done	- print out messages describing outbands operation in case user 
	  didn't set it correctly
done	- Optimize image i/o
done	- Need function(s) to separate color component from cmap images
???	- gamma correction function
done	- remove xvv_initop() and xvv_chtype() calls - interface violation
done	- the zzdbg.x routines duplicate the EXPORT names
done	- update database with latest EXPORT format

Misc. Notes:
-=-=-=-=-=-=

fixed	- invalid evvexpr expressions
	    => lexnum not terminating as ':'
		(1 > 0) ? 1 : 2		# syntax error
	    => xvv_gettok not recognizing empty string
		(1 > 0) ? "true" : ""	# always returns ""
fixed	- missing evvexpr functions:
		long()
		short()
