abstracted wrap-in-note, unwrap-note and get-uk-date
refactored add-class & remove class to use string methods rather than array methods
abstracted note segment class updates and uuid
Merge branch 'master' into jp-refactor-note-toggle
revert remove-class regex change
removed unneeded _.clone method
removed comment
Merge pull request #39 from guardian/jp-refactor-note-toggle

Refactor note-toggle (part 1)