directory change notification patch

[Mark Weaver]

> This is something I was intending to get in for 3.0.12 but failed to make
> the cut. Due to the brown-paper-bag nature of 3.0.13 it won't be in that,
> but I'll put it very high on my list for 3.0.14.
> 
> Sorry it's taken so long.
> 
Sorry, I'm a bit confused now.  Does this mean that there is already a 
patch that does the same thing?  I couldn't find anything, other than 
the original that I based my changes off -- from Feb 2003 -- and 
searching bugzilla for 'notify' didn't produce anything relevant.  I'm 
not worried if there is (poking around in the code was a fun weekend 
project :) but I am a bit mystified!

Thanks,

Mark