[#3] Initial commit for interactive presentation feature branch.
Update README.md
[#3] Adding new stylesheets (fixes and Tangle dependency).
[#3] Adding new JavaScript files (dependencies for Tangle and Raphael.js).
[#3] Adding directory for images.
[#3] Adding new code highlighting style.
[#3] Adding small automation script and applying fixes in notes-server plugin.
[#3] Adding fixes, wiring and sample slides into main HTML file.
Merge pull request #4 from afronski/interactive-presentation

Pull request for Interactive presentation