whole host of updates

	new file:   .gitignore
	new file:   slides/img/captain-planet.jpg
	new file:   slides/img/indian-curry.jpg
	new file:   slides/img/maxwells-equations.png
	modified:   slides/index.html
	modified:   slides/slides-theme/talk-specific.css
Merge branch 'master' of github.com:funjsldn/fun-js-class