As users can only use 8 characters in specifying a file name. I cannot possible
name the files so that the name actually reflect what the files are.  I, therefore,
retreat to use numbering system to name the files.  The characters prior to the
number indicates the diagram type.  The details of what each file contains are
described here:

OMT...

omt.clp		to load the required functions for omt diagram type...

omt3.clp        CLIPS code for validate the arc annotations added.
		(Current problem: diagram-image-get-first-annotation always return -1)

omt5.clp        to allow Event to Objects arc in the OMT Dyanmic model to 
		be able to connect nothing to an Object.
		(Current problem: override arc type name "Event to Object")

Booch...

booch.clp	to load the required functions for booch diagram type ...

booch3.clp      to check for arc annotations for Booch notations.

booch4.clp      to allow an arc to join an Object name node to nothing, used
		in Booch Interaction diagram.

OOADUtil        contains utilites functions:
		- check-for-exclusive-arc (?exclusive ?card-id ?arc-image-id ?annotation-id ?annotation-name ?region-name)
		- drag-canvas-to-node (?card-id ?image-id ?attachment ?x ?y ?valid-node-type ?new-arc-type)
		- drag-node-to-canvas (?card-id ?image-id ?attachment ?x ?y ?valid-node-type ?new-arc-type)

