Added function eprod

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/mombf@208 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Removed non-existing file

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/mombf@209 edb9625f-4e0d-4859-8d74-9fd3b1da38cb