Don't require an exact zc.buildout version.
Adding a Travis configuration.
Tightening up zc.buildout requirements, since Travis ends up installing
a very new version otherwise.
Adding Travis CI pin.
Also run tests on Python 2.6.
Fixing string formatting for Python 2.6.
Removing commented-out code.
Allow Python 2.6 to fail.
There are too many things named _setup, rename them.
Merge branch 'master' into ahl2014

Conflicts:
	pkglib/pkglib/setuptools/_setup.py
	pkglib/setup.cfg