More fixes are in ...

Hi all,

I've commited some fixes in trunk. As always, review of patches are welcome.

Nothing huge, the works today was mostly on delete user system. It
should be mostly working now :) (at least hooks should be ok).
Beetween, the cache system should be quicker than before ... It let you
look at why :).

A question is still here:
Does the autocreated contact at the time of the user creation should be
deleted when the user is deleted ?

Regards,

Caeies.