Working on unix_convert for 3.2

[Jeremy Allison]

In case anyone else grabs it :-). I'm working on a patch
to remove pstring assumtions from unix_convert and return
talloced memory (part of the pstring removal).

As I know Jerry wants to start on the 3.2.0-pre releases
I just wanted to let you know so you can tell me if you
don't want me to check it into 3.2.0, only 3.2.

Should be done and valgrind tested by mid-next week
(latest estimate).

Jeremy.