rat and rats ported from octave-forge

[Donald Parsons]

David, thanks for the rat/rats support.

(Fedora 6 + octave cvs)
The format of the rat(s) output seems to be missing a
new line or two:
_________________________________________

address@hidden octave]$ octave
GNU Octave, version 2.9.12+ (and version 2.9.13+)

Octave was configured for "x86_64-unknown-linux-gnu".

octave:1> h=hilb(3)
h =

   1.00000   0.50000   0.33333
   0.50000   0.33333   0.25000
   0.33333   0.25000   0.20000

octave:2> rats(h)
ans =           1        1/2        1/3
        1/2        1/3        1/4
        1/3        1/4        1/5
_________________________________________


On a totally unrelated topic, when I first tried compiling
octave I couldn't get glpk to be found because ./configure
looked for /usr/include/glpk.h  but it is in glpk sub-
directory.  Rather than edit code, I just put a link in
/usr/include to fix problem as below.  Should auto test
code be "fixed" so link is not needed? 

  GLPK libraries:       -lglpk

find /usr/include/ -name glpk.h -ls
lrwx 1 0    11 Jun 28 21:13 /usr/include/glpk.h -> glpk/glpk.h
-rw- 1 0 24463 Apr  7 16:33 /usr/include/glpk/glpk.h

Thanks,

dfp