version 0.5-1

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/dirichletreg@17 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
DESCRIPTION fix.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/dirichletreg@18 edb9625f-4e0d-4859-8d74-9fd3b1da38cb