Version 1.1.3:
  * Make local gapless alignment function linear in memory consumption
    (Gayathri Jayaraman); related to this, remove "maxfraglen" and the "-l"
    option, since these are no longer needed.  The function continues to
    be quadratic in time.
  * Bugfix in gapless alignment function (off-by-one error) (Gayathri Jayaraman)
  * Another small improvement to best_match()
  * Fix string-bounds bug relating to pre-fragmentation of sequences

Version 1.1.2:
  * a trivial change to best_match() that increases the speed by over 30%
    with larger input files
  * include NetBSD->FreeBSD version of getopt_long(), for compatibility
    on platforms that lack it

Version 1.1.1: 
  * fix compilation error on powerpc (and maybe other platforms)
  * include manpage contributed by Charles Plessy 
  * document -l option in NOTES and printhelp.c

Version 1.1: rewrite in C, a few bugfixes and improvements 
             described in README

Version 1.0: first release, in Objective Caml
