Usage: model_info [options] files
 
	model_info shows internal feature names of a model like parameters, 
	notes, datums and simplified reps.
	Parts and Assemblies are scanned differently from drawings.
	The output generated for drawings is not very neat, but if you study
	it you might find what you are looking for.

	options:	-h 	=>	this help screen 
 			-n 	=>	don't show default info
					(use with options below)
			-p 	=>	show parameters
			-v 	=>	show view names
			-r 	=>	show relations
			-c xxx	=>	Check options, with xxx:
					explode = show if assy is exploded
					color = show if color has been set
			-s 	=>	Run silently

	NOTE:	if a color has been set to a part in assembly mode and the
		part is later deleted, the color setting remains in the .asm
		file, which will confuse the -c color option.
		
Author: Olaf Corten, the Netherlands
E-Mail: olafc@molding.fico.nl or ocorten@knoware.nl

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# History:
# 
# 19991027 Added sheet sizes.
# 19990610 Now searching for first two text_val_codes.
# 19990219 Changed SCRIPTS_DIR extraction.
# 19980810 Fixed not finding parameters i roughness has been set (changed tail -1
#	   to head -1).
#	   Added -v option. Added -r option.
#	   Changed name to model_info.
#	   Added -c color and -c explode option.
# 19980803 Fixed bug when no parameters are found. Added explode check.
# 19980525 Added -n option.
# 19980508 Fixed '0 : 51' parameter error for R19 files
# 19970225 Fixed 
# 19960723 Changed SCRIPTS_DIR setting.
# 1st version: 1996
#
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