if ! svn ls $base_url/$proj/tags/RELEASE_$release > /dev/null 2>&1 ; then
svn mkdir -m "Creating release directory for release_$release." $base_url/$proj/tags/RELEASE_$release
fi
if ! svn ls $base_url/$proj/tags/RELEASE_$release > /dev/null 2>&1 ; then
svn mkdir -m "Creating release directory for release_$release." $base_url/$proj/tags/RELEASE_$release
fi