Release Name: 1.8

Notes:
To use Tioga, you must have Ruby 1.8 or later (including development files), pdflatex and a C compiler. Just untar the source package, and either run

sudo ./QUICK_INSTALL

or 

./HOME_INSTALL

within the extracted package. Please check that all tests run fine.


Changes:
    Version 1.8 is essentially a cleanup/bug fix release. Tioga now compiles
with hardly any warnings, thanks to the work by Taro Sato. show_axis can now
take a hash instead of a simple location, and can draw axes basically
anywhere. See the axes_fun function in samples/plots/plots.rb and
show_axis documentation. Few bugs were fixed, in particular the
position of ticks with ticks_inside/ticks_outside, and the
installation via Rubygems which was broken for such a long time we are
ashamed of it.