Merge pull request #199 from hannu/gh-pages

Add initial landing page
Merge pull request #200 from hannu/gh-pages

Page: Add initial responsive styles. Improve layout
Bower config
Github ribbon component
View on GitHub as a ribbon
Merge pull request #206 from varya/gh-pages

Page: "View me on GitHub" as a ribbon
Finetune landing page styles. Add .gitignore