childNodes Test

Taken from webcomponentsjs PR #393, this test checks for a live NodeList.

See shadydom issue #270 for background.

How to use

npm install
npm start

How to develop/debug

Pull down shadydom locally and link

git clone git@github.com:webcomponents/shadydom.git
cd shadydom
npm install
npm run build
npm run debug
npm link

Then, in this project, use the linked build

npm link @webcomponents/shadydom