Option to rescan icecast playlist

src/freedombone-app-icecast

                    ICECAST_CODE
                    DEFAULT_LANGUAGE)
 
+function icecast_rescan {
+    if [ -d $ICECAST_DIR ]; then
+        if [ -f $ICECAST_PLAYLIST_FILE ]; then
+            rm $ICECAST_PLAYLIST_FILE
+        fi
+        icecast_add_file_to_playlist $ICECAST_DIR
+    fi
+}
+
 function icecast_update_daemon {
     systemctl stop icecast2
     if [ -f /etc/init.d/icecast2 ]; then
         trap "rm -f $data" 0 1 2 5 15
         dialog --backtitle $"Freedombone Control Panel" \
                --title $"Icecast" \
-               --radiolist $"Choose an operation:" 15 70 8 \
+               --radiolist $"Choose an operation:" 16 70 9 \
                1 $"Import stream files from directory" off \
                2 $"Import stream files from USB drive" off \
                3 $"Manually edit playlist" off \
                5 $"Format a USB drive for stream file storage" off \
                6 $"Enable login for stream visitors" off \
                7 $"Change password for stream visitors" off \
-               8 $"Exit" on 2> $data
+               8 $"Re-scan playlist" off \
+               9 $"Exit" on 2> $data
         sel=$?
         case $sel in
             1) break;;
             5) icecast_format_drive;;
             6) icecast_enable_login;;
             7) icecast_change_login;;
-            8) break;;
+            8) clear
+               echo $'Rescanning playlist'
+               icecast_rescan;;
+            9) break;;
         esac
     done
 }
     icecast_update_daemon
     nginx_ensite icecast
     systemctl restart nginx
+    icecast_rescan
     start_icecast
 
     APP_INSTALLED=1