Added browser detect and check for IE in footer for jQuery and Zepto
New js plugin. Tweak jscs settings. Add iFrame lazyloading back.

- Remove extra rules from jscs
- Add yepnope and zepto to dependencies on Bower.json
- New js plugin experiment `here.js
- Add in iframe lazyloading back
Tidy up, make ready going live. LAst minute fixes.

- Take out Zepto for now.
- Use the onscreen jQuery plugin.
- Read color theme cooki with PHP not js.
- Make a little function for the color theme cookie.
- Make Hello Kitty and Boring themes more uniform: make the ToC and code
  blocks the right color also.
- Add int he ssmm plugin
- Put right files into the concat.js
- Make _utilities.scss file
- Make _themes.scss file