
   Dec 1992: Version 1.0 of the ANU NQ

22 Jan 1993: Version 1.1 of the ANU NQ
	   + introduction of this file and the file README
	   + added option -t to nq
	   + improvements to testNq
	   + added target clean to the make file
26 Feb 1993: Version 1.1b
	   + added the option -a to nq and the corresponding
	     output routine outputMatrix() to glimt.c.
22 Jun 1993: 
           + The file README has not yet been updated with a
             description of the option -a. 
12 Aug 1993: Version 1.1c
           + modified the file engel.c to allow checking of more
             identities. This entry has been made in Oct 93; it
             has to be checked what the modifications are and which
             options have been added.
14 Oct 1993:
           + changed the functions buildPairs() and buildWord()
             such that they also build words with negative exponents.
             This can be switched off using the option -s (s for
             semigroup words).
           + Added a check for the identity matrix to the function 
             addRow(). A flag EarlyStop is set if the check is
             positive. This flag is now used in the files
             consistency.c, relations.c and engel.c to stop the
             computation as soon as all new generators are eliminated.
           + Fixed the last printing of the total runtime in main().
