The minified .js are for production

create-react-class is a wrapper for the legacy React.createClass API.
Using create-react-class, we can continue to use the deprecated way of
creating React components - otherwise, we have to upgrade each component
manually, a time and error-prone process.

For now, we can use latest React without changing our components.
However, we should update a component whenever we work on it to the
latest format.

react-transition-group was moved away from React into
a community-maintained project.

Calling foundation() on a React-rendered element caused all handlers to
quit working (i.e., onChange did never receive a callback). Wrapping the
reveal element in a dedicated element and keeping the react-rendered
part separate seems to work.

Conflicts:
	src/onegov/swissvotes/assets/js/react-dom.min.js
	tests/onegov/form/assets/react-dom.min.js
	tests/onegov/form/conftest.py