library updates
tweak styles for asciidoc generated slides

- change .topic to .intro
- .topic means show heading
- h2 instead of h1 for intro slides
ignore dzslides symlinks
add source highlighting to tree
library updates
lhs class
fix final slide, add terminal & mild classes
change stmt to statement
fix footer, add list scatter, add image stretch axis
change font color on figure caption
upgrade highlight.js
split and scatter ul updates
figcaption, text-right and colist styles
Merge branch 'master' of git://github.com/mojavelinux/dzslides

Conflicts:
	scripts/slides2png4win.groovy