Also refactored a bit.
TODO: Remove the use of parse_rdata() function in utilities, so
      that it may become static.

Bad source size counting. Still needs polishing.

Used traverse_rdata() function. Still needs some polising and
more refactoring (together with the rr_from_wire() function.

First draft. Requires some optimizations and testing.

DNSSEC: convert signer in RRSIG to lowercase

See merge request !274

NEWS in reStructuredText

NEWS file is now in RST format, that should make it easier to parse by automated tools like freshcode.club (http://fossil.include-once.org/freshcode/wiki/Autoupdate)

See merge request !273

See merge request !272
Fixes #289

Log msg cleanup

See merge request !271

Ddns uppercase tsig

See merge request !268