Version 2.2.1 adds functions for creating and comparing two Fraction of Design Space Plots.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/daewr@79 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
git-svn-id: svn://svn.r-forge.r-project.org/svnroot/daewr@80 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Corrected Bug in this function

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/daewr@81 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
git-svn-id: svn://svn.r-forge.r-project.org/svnroot/daewr@82 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
git-svn-id: svn://svn.r-forge.r-project.org/svnroot/daewr@83 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
git-svn-id: svn://svn.r-forge.r-project.org/svnroot/daewr@84 edb9625f-4e0d-4859-8d74-9fd3b1da38cb