refresh: add ten minute timeout

If the script deadlocks for whatever reason, having crontab spawn
more and more instances of the script will flood the system with
its copies.  As a work around add a ten minute timeout after which
the script will be killed with SIGALRM.
refresh: fix ordering of FaiF episodes

The 0x5A episode has been released out of order (i.e. just after
0x4F).  Change sorting such that it sorts after 0x4F and before
0x50.