Release Name: 1.3.1

Notes:
As usual, try either
./HOME_INSTALL
or
./QUICK_INSTALL

You must have Ruby, PdfTex and a standard compiler installed for proper function.



Changes:
From the Tioga_README file:

          Version 1.3.1 is as usual a bug-fix release, although bugs
were not that obvious this time. Among other things,
  * it fixes some troubles with IRB and the Mac GUI
  * it fixes the use of Tioga custom colors in the LaTeX materials,
  such as in one of the figures in samples/figures/figures.rb. 
  * quite a bit of code cleaning
  * some documentation updates
  * and, last but not least, the samples/ directory now contains a shell
  script to create and optionally display all the figures defined in
  one IRB Tioga ruby file. If, say, you can use gv to view PDFs, try
  out the following line:

  cd samples; ./make_plots --viewer gv figures/figures.rb
  
  Enjoy !!