* Discovered that my system hasn't processed its refcount_adjustments queue in about...

* Discovered that my system hasn't processed its refcount_adjustments queue in about six months, because a file called refcount_adjustments.dat2 was sitting around and keeping the link() command from succeeding.  Fortunately, the code is robust enough to gracefully excuse itself from this situation without corrupting the database, but now I've got a six month backlog of refcount adjustments to process.   Corrected this situation for anyone else who is having it, by putting a random number in the name of the temporary file.
* When displaying ref count deltas to the log, show +1 instead of just 1 for increments.
* Added a new command TDAP which can be used by an Aide to manually initiate a run of The Dreaded Auto-Purger.