sstsssmld has been updated in the online postprocessing to oce for compatibility with PA changes - if case for backward compatibility

These lines constrain the post-processed years to be only full years. This had to be the case when ocean_pp.bash was initially developped but it is not the case anymore since about 2 years

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