Updating the web page for advertising the new RHRV 4.0.  Updating the tutorial with the new nonlinear analysis techniques.

Increasing the number of package version for the next Release (Description file)

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/rhrv@123 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Adding the Quick start guide to the web page

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/rhrv@124 edb9625f-4e0d-4859-8d74-9fd3b1da38cb