Add automatic selection of members if list is left empty + check if prescribed members are not present (+ fixes with trap function)

Add a 'trap' command to automatically clean up the workdir (after a week) if the post-processing fails

Adding Chloé's new scripts designed to calculate monthly statistical values (10th and 90th percentile and number of days over the climatological 10th and 90th percentile) from daily or 6 hourly data to the git project