no: new default APN for Telenor Norway

Telenor Norway's new default APN is "telenor.smart". This APN supports
both IPv4 and IPv6, so use a host name rather than a literal IPv4
address to refer to the MMS proxy. The statically configured DNS servers
are removed as Telenor is using dynamic DNS server assignment (and the
DNS servers assigned by the new APN are in any case different from the
ones currently hard-coded in serviceproviders.xml). The new APN does not
require username/password.

This change has been ACK-ed by Telenor's IPv6 project leader
Gwenael-Christian Berthet <Gwenael-Christian.Berthet@telenor.com>.

The new settings may be verified on Telenor's web pages at
http://www.telenor.no/privat/kundeservice/mobilhjelp/ (under "Kom i gang
med IPv6").

https://bugzilla.gnome.org/show_bug.cgi?id=748089