First round of small crash fixes for svn

[dormando]

> I posted an analysis of a deleter bug on Oct, 11 under the subject
> 
>     Suspicious behaviour of the delete process
> 
> Maybe this you have the same problem (one node turned off)?
> 

If you check brad's reply, I actually reported an issue with the old 
style deleter a while ago :P I said it off-list though, my bad.

All of our devices are up and available, the deleter's are doing 
_something_, I just haven't had the time to ask it what yet.

-Dormando