4.4BSD snapshot (revision 8.1); add 1993 to copyright

new copyright; att/bsd/shared

Add copyright

fixed seek addresses for large files

upped some limits for large programs (> 10000 lines)

changed skimsource so that it just returns if the given filename
is the same as the current source filename ... this way routines from the
outside needn't test this

date and time created 82/01/18 19:21:09 by linton

Automatic directory addition