[tests] Removes compact test that sometime fails
(closes #201) - implement _db_updates
test fallback when db_updates are not supported
Merge pull request #202 from jo/201-db-updates

(closes #201) - implement _db_updates
Merge branch 'master' of github.com:dscape/nano

* 'master' of github.com:dscape/nano:
  test fallback when db_updates are not supported
  (closes #201) - implement _db_updates
5.9.0
5.9.1
Fix README TOC
Fix db.updates documentation format