Add tox.ini
py3: print statement -> function
Add pytest-coverage plugin
Improve(?) docstring of pop
Make test Python 2/3 compatible. Add encoding tests.
tox.ini: remove py32, add py34
tox.ini: add "recreate = true", so tox always uses the latest dependencies.
gitignore the usual virtualenv paths
fix: move the recreate option to the correct section. oops.