Hi Gustavo,

> Add a still dummy DUN code, now it can only creates and removes modems.
> The DUN plugin follows the HFP one a lot, the is basics a copy of some
> HFP plugin's parts.
> 

Me and Marcel talked about this a few weeks ago, and we decided that we'd 
prefer the DUN client to be a separate daemon shipped within oFono source, 
with its own D-Bus interface.

The reason is that DUN client needs to accept a custom dial string for most 
modems out there, and there's no way to do this in oFono today.  However, you 
can re-use most of oFono's plumbing for this work, including gatchat & 
bluetooth.c

Regards,
-Denis