batch scheduler upgraded on linux cluster

The Maui scheduler was upgraded from v3.2.5 to v3.2.6p9. This should help with the fair-share scheduling and backfill. Give lower priority to those who use a lot of cputime, and prioritize the once who run less.

Check 'showq' or 'showq -i' to see what priority your job has to get started. Complain to hpc-support@hpc.uib.no if you feel you're not getting high enough priority.

NFR-users should get top priority as long as they're not using more than 75% of the cputime.