- Nexedi adheres to GPLv3+ with wide exception for Free/Open-source
  software. Use this for our original work.

- Zodbanalyze was initially developed by Zope corp & co. See

  d86d04dc	(initial copy of ZODB3-3.9.7's ZODB/scripts/analyze.py.)
  ab17cf2d	(Hook in Nexedi's zodbanalyze)

  So follow original Zope's licensing terms for zodbanalyze.

The package was named zodbtools from start (see fd6ad1b9 "Start of
zodbtools.git"). However in 66a03ae5 I've made a thinko naming some
parts as zodbtool.

Fix the confusion and name things uniformly as zodbtools.

/reviewed-by TrustMe