Problem rm run_dir_path

[nvuilsce]

In change 933 of libigcm_config.ksh, we now remove the directory RUN_DIR_PATH. Before this change, the dir RUN_DIR was removed. There is a check if the RUN_DIR_PATH dir is important or not (with the function check_path), but this check is not enough: When I used this revision of libigcm specifying myself RUN_DIR_PATH, this directory has been deleted at the end of the job.
Would not be possible to find a better solution to the point raised in ticket #141 and to return back to the former instruction
rm RUN_DIR ?

[jgipsl]

Proposed solution :

In function IGCM_sys_RmRunDir :
Only delete the directory if RUN_DIR_PATH="default RUN_DIR_PATH". If it is modified by the user in the job, then do nothing or delete the RUN_DIR if possible.

[jgipsl]

In fact, the sceduler takes car of removing the temporary run directory. Therefor IGCM_sys_RmRunDir can be a dummy one.

Done in commit [964]

[sdipsl]

fix. see r964