Update baselines for change to file MIME detection.

(Was previously matching on data beyond *bof_buffer_size*).
Update baselines for new format of DNS TXT answers.
Merge remote-tracking branch 'origin/topic/jsiwek/faf-perf'

* origin/topic/jsiwek/faf-perf:
  Update baselines for change to file MIME detection.
Updating timing baseline
Merge remote-tracking branch 'origin/topic/jsiwek/bit-1156'

* origin/topic/jsiwek/bit-1156:
  Update baselines for new format of DNS TXT answers.