Since pr_ChangeEntry() already checks to see if the id's aren't changing,

Since pr_ChangeEntry() already checks to see if the id's aren't changing,
don't bother conditionalizing the call.

Added a few sleep() calls to give the ptserver some breathing room.
(This may still need some tuning, or possibly retry attempts added.)

If a script fails to run properly, retry it (it may have been due to some
temporary failure such as loss of quorom, slow prdb ubik updates, etc.)