Site updated with more info for new folk

It has been mentioned that for those new to the blog its hard to get an idea of what the project is about and how its progressing, so I have done some work re-arranging the pages, adding pages and adding a 'Story so far' page to help people see the project at a glance. The links are over to the right hand side.

http://www.carbon-neutral-car.com/p/story-so-far.html