Add --version parameter

bin/saturnin.skel

 SATURNIN_LIBEXEC="__SATURNIN_LIBEXEC__"
 export FFOO_CONFIG_PATH=$(mkinipath | tr '\n' :)
 export FFOO_CONFIG_SUFFIX=".ini"
+export SATURNIN_VERSION="__VERSION__"
 
 ffoo import exit
 ffoo import core
       | sed -e 's/saturnin-/    /'
 }
 
+version_info() {
+    echo "$(basename $0) (Smart and ready desktop helper) $SATURNIN_VERSION"
+    exit $FFOO_EXIT_OK
+}
+
 while true; do case $1 in
     -d|--debug)     export FFOO_DEBUG=true; shift   ;;
     -v|--verbose)   export FFOO_VERBOSE=true; shift ;;
+    --version)      version_info                    ;;
     -*)             usage;                          ;;
     --*)            usage;                          ;;
     --)             shift; break                    ;;