Proto commits in CZ-NIC/knot

These 5 commits are when the Protocol Buffers files have changed:

Commit:5309b7d
Author:Daniel Salzman
Committer:Daniel Salzman

dnstap: update dnstap.proto

The documentation is generated from this commit.

Commit:20e59a6
Author:Daniel Salzman

dnstap: add explicit syntax version

Commit:5b827cb
Author:klemens
Committer:Jan Vcelak

trivial spelling fixes, as found by misspell_fixer

Commit:494b93a
Author:Daniel Salzman
Committer:Daniel Salzman

contrib: move dnstap

Commit:94942ca
Author:Robert Edmonds
Committer:Robert Edmonds

Add initial dnstap implementation