Update the API files.
- lib/dns:
- struct resolver has added elements, this is an interface change
and thus LIBINTERFACE is incremented, and LIBREVISION is reset.
- Since this also means an interface change since the last public
release, also reset LIBAGE.
- lib/isccfg:
- The library source code changed, so increment LIBREVISION.
- lib/ns:
- The library source code changed, so increment LIBREVISION.
Update other files:
- No changes needed to the README, this is a small bugfix release.
0ec9ae77a8