[Serusers] Cacheless usrloc module

[Andreas Granig]

Hi,

I'd like to announce an experimental module for SER-0.9.x which provides 
a cacheless user location implementation.

It's fully compatible with the original usrloc module (well, in fact you 
have to apply a small patch to assure full compatibility, but this patch 
doesn't hurt if you switch back to the original usrloc module).

It currently only supports MySQL as backend because some MySQL specific 
queries are used.

Also the watcher/callback API isn't tested, so you currently better not 
use it in combination with the pa module.

You can find the module and a short howto here:

     http://linguin.org/ser.php#usrloc_db

Please note that this module is very experimental. Any feedback is 
highly appreciated.

Andy