Ignore derived.
Don't need ez_setup.py.
Contributor agreement.
Fix up todo list.
Don't force coverage.
Depend directly on 'transaction'.

'repoze.tm2' is a distraction.

Also, denote supported Python versions via classifiers.
Test supported Python versions using tox.

100% coverage, too.
Don't zip eggs.
Add 'setup.py dev' alias.

Runs 'setup.py develp' + installs testing dependencies.
Add 'setup.py docs' alias.

Runs 'setup.py develp' + installs docs dependencies.
Factor the manager interface into 'interfaces' module.
Document the manager API via autointerface.
Ignore derived.
Note changes.
Add support for building docs under 'tox'.
Typo.
Prep 0.5 release.