Modification of libIGCM behaviour :
To use this function, one must copu libIGCM.card from ${libIGCM} directory
and put it in ${SUBMIT_DIR} directory. Ater modifications of ${SUBMIT_DIR}/libIGCM.card,
variables define inside [UserChanges?] will be modifyd for next Period of libIGCM main loop.
Be carefull : it can give problems with post-treatment !