Modified description as per CRAN guidelines.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/timp@85 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Formatted DESCRIPTION file

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/timp@86 edb9625f-4e0d-4859-8d74-9fd3b1da38cb