stremdef - one bug fixed. Now version changed to 0.61 

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/lfstat@56 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Fct stremdef - one bug fixed. Now version changed to 0.61 

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/lfstat@57 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Version number corrected

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/lfstat@58 edb9625f-4e0d-4859-8d74-9fd3b1da38cb