Fix typos and improve consistency
Merge pull request #20 from alphagov/typos-consistency-dec-13-update

Fix typos and improve consistency - bosh!
Tweaking video script to provide figcaptions from the source <a> tag
Renaming the figcaption suppressing class
Removing extraneous .video class
Removing (now) extraneous titling <p> tags
Cleanup of testing code
Catching conflicts