[Users] Dispatching to and checking for trusted UACs

[Andreas Granig]

Juha Heinanen wrote:
> Andreas Granig writes:
> 
>  > +		Loads URI schemes, addresses, ports, and transports of gateways
>  > +		that match user part of Request-URI and the given group id to 
>  > +		gw_uri_avp AVPs. Returns 1 or -1 depending on success.
> 
> this gives impression that group id need always be given.  if i
> understood correctly, group id is optional.  if so this should be
> clearly stated (also for other functions).

Group id is optional, yes.

I introduced new sections for each of the new functions, thus there will 
be a separate documentation section for load_gws(), load_gws(int), 
from_gw(), from_gw(int) and so on.

But I'm going to combine the sections as for example found in 
http://openser.org/docs/modules/1.1.x/nathelper.html#AEN229 and send you 
the patch.

Andy