Major Enhancements

List of changes summarised here: http://taitems.tumblr.com/post/14143450461/ive-just-pushed-some-pretty-hefty-changes-to-the 

Commit message as follows:

- Updated demo page doctype to HTML5

- Moved body styles from stylesheet to page to reduce conflicts

- Reduced conflicts with Twitter Bootstrap by namespacing code

- Source now accepts data from a local object, not just a JSON call

- Can now extend data properties on to bars for use with Bootstrap popovers etc

- Code is now "use strict"

- Fixed a couple of errors resulting from "use strict"

- Various English translations: renamed hollydays to holidays + renamed months and days to english

- Redesigned buttons and slider with CSS3 and an image sprite

- Modified category colours and styles

- Made chart 100% width so it responds to parent container width

- Began enforcing front end dev guidelines http://taitems.github.com/Front-End-Development-Guidelines/ such as double quotations (but singles on HTML strings), triple equals comparison and using spans instead of hyperlinks for JavaScript interactivity