Remove fixed rest day after three days training

After three days of training, JOIN will always give me rest day in my plan. This is independent of my training load in the previous days or availability for the next days.

If I know I will not be able to train in the days after the proposed rest day, I now choose an extra workout myself for the forth day. It would be useful if JOIN would look further ahead or would suggest a workout if you do not take the rest day.