This directory contains the macros which are loaded as a result
of setting the KBD environment variable. These files set the global
list variable, kbd_labels, which is used by CRISP in the 
int_to_key() primitive if the labels on your keyboard are not
necessarily in correspondence with a PC keyboard.

For example, you might have a META key rather than an ALT key.

The format of this list is a sequence of pairs, where the
first element of the pair is the internal key-code (an int) and the
second part of the pair is the string to use for that keycode.

Only the key-sequences not compatible with the default characteristics
of int_to_key() should be defined.
