merge upgrade of highlight.js, add base styles to pre code, dont limit language detection in index.html #809

For the Moon and Solarized themes they had .css appended to them which was causing them to not come up.

For the Moon and Solarized themes they had .css appended to them which was causing them to not come up.

according to README, I don't include reveal.min.js.
Hence I believe it makes sense to not include reveal.min.css either.
Hence, examples added in index.html can give the feeling that they don't work yet.

use 'url()'-free path when specifying parallax image, refactor so that parallax is applied to background class, remove unused attributes #595

Commented out leap plugin inclusion.

Enhanced the pointer.
Cleaned up the code.
Added additional optional parameters.
Updated documentation.

modified:   README.md
modified:   index.html
modified:   plugin/leap/leap.js

Updated README.md to mention the leap plugin.
Removed leap settings from index.html.
Better variable naming in leap.js

modified:   README.md
modified:   index.html
modified:   plugin/leap/leap.js

Changed invert to naturalSwipe
Removed invert rule from index.html
Ensured that left/right swipes only work with 1 hand present
modified:   index.html
modified:   plugin/leap/leap.js

Added timing code to limit gesture calls.
Added gesture to access the overview.
index.html includes the leap plugin