Pull Request for Interactions is up!

I have finally finished the interactions rewrite and submitted a pull
request[1] for people to start commenting on.

There are issues in the prose for bits that are not complete but those can
be completed as follow ups. The main feedback required is missing sections
that have not been covered at all.

You can visit a rendered version of the section on my gh-pages[2].

David

[1] https://github.com/w3c/webdriver/pull/281
[2]
http://oss.theautomatedtester.co.uk/webdriver/webdriver-spec.html#interactactions