#4 /etc/resolv.conf is read only

[Jerry Dunmire]

In the ISO, /etc/resolv.conf is located on the iso9660
file system (the CDROM) and therfore ReadOnly. But
/etc/resolv.conf needs to be writable when the external
IP address is discovered by DHCP.

This is really a pebble problem and not a pebblecdmaker
problem.

The fix is to move /etc/resolv.conf to /ro/etc/resolv.conf.
Then create a symbolic link from /etc/resolv.conf to
/rw/etc/resolve.conf.

This has to be done in the pebble tarball.