Add C reading roth_visual_2012 to Flusser session
Remove comment in code generation portion of sidebar.html

(Resolves issue #1)
Add value 'true' to YAML key 'published'

This is necessary for Jekyll to publish pages
Update .gitignore
Add HTML author, description metadata

- includes.html: Add Liquid template to generate HTML author,
  description metadata
- index.md: Adjust page description
- _config.yml: Adjust site description
Make schedule info the index page

- Move index.md to 01-description.md
- Move 01-schedule.md to index.md
- Adjust link generation in _includes/sidebar.html
Add link to PDF repository
Remove YAML file header keys 'version' and 'filename'
Update README.md