[dev] new optimized sql Share driver

[Chuck Hagenbuch]

Quoting Duck <duck at obala.net>:

> I started to work on a new share driver today as I having problems  
> with memory
> and execution time inside Horde_Share. Fist I must mention that my my driver,
> for now, do not support session cache, share names and hierarchies (no sub
> shares for ansel yet) as I was concentrating on the performance of the data
> retrieval.

This sounds potentially promising; I hope to look at it in a few days.  
Unfortunately I got pretty backed up this weekend and have a lot of  
patches that I'm behind on.

-chuck