Make MessageID decode a bytes domain.

[jamadden]

Fixes #17.

Also use zope.testrunner to handle the namespace package issues.

Fixes #16.

Since we were in .travis.yml, enable coverage reporting and pip caching.

[jamadden]

Thanks! Could we get a release (or PyPI access)?

[mgedmin]

You've PyPI access.

[jamadden]

Thanks! 4.1.0 uploaded.

[ralphbean]

Hm... the 4.1.0 tarball unpacks as zope.configuration-4.0.3/. Is that expected?

[jamadden]

That would very much not be expected!

But I don't replicate that and the MD5 matches:

$ wget https://pypi.python.org/packages/be/1b/84b54ec99c92ab4db6185c1b334329d717ab6e42eb8f59c63ea3f5d6591b/zope.configuration-4.1.0.tar.gz#md5=b421118fa01ab28864354c1d796b887a
--2017-04-26 09:54:54--  https://pypi.python.org/packages/be/1b/84b54ec99c92ab4db6185c1b334329d717ab6e42eb8f59c63ea3f5d6591b/zope.configuration-4.1.0.tar.gz
Loaded CA certificate '/opt/local/share/curl/curl-ca-bundle.crt'
Resolving pypi.python.org... 151.101.192.223, 151.101.0.223, 151.101.64.223, ...
Connecting to pypi.python.org|151.101.192.223|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 77780 (76K) [application/octet-stream]
Saving to: ‘zope.configuration-4.1.0.tar.gz’

zope.configuration-4.1.0.tar.gz               100%[===============================================================================================>]  75.96K  --.-KB/s    in 0.02s

2017-04-26 09:54:54 (3.42 MB/s) - ‘zope.configuration-4.1.0.tar.gz’ saved [77780/77780]

$ tar -tf zope.configuration-4.1.0.tar.gz
zope.configuration-4.1.0/
zope.configuration-4.1.0/.coveragerc
zope.configuration-4.1.0/bootstrap.py
zope.configuration-4.1.0/buildout.cfg
zope.configuration-4.1.0/CHANGES.rst
...
$ md5sum zope.configuration-4.1.0.tar.gz
b421118fa01ab28864354c1d796b887a  zope.configuration-4.1.0.tar.gz