February, 1994 -> 17

	Replace rdf2 and rss with prdf and prss.  Curve fitting routines
	were provided by Phil Green, Washington U., St. Louis.

	Provide the "-i" option to reverse-complement the query
	sequence if it is DNA.

	Fix a bug in the alignment routine (zzlgmata.c) that caused
	an error message on some machines, bus errors on others.

August, 1994 -> ssearch 17a1

	Corrections to fasta.1 and ssearch.1 man pages.

	Correction to ssearch alignment routine.

Sept, 1994 > 17a2

	Minor additions to existing man pages.  Fix programs to
	report identify between 'T' and 'U' for DNA/RNA.

November, 1994

	Fix core dump with prss/prdf when default window size used.

	Produce a more representative histogram display.