Enable pretty output of the HTML code
Remove Bootstrap from the sources (as it is loaded by the CDN)
Add jQuery and Modernizr to the sources
Took some inspiration from HTML5 BoilerPlate and Initializr.

Several things changed:
* added humans.txt and robots.txt
* rename style.scss to main.scss
* improved the 404 page
* many others improvements on the main template
Missing .
Create animated favicon and mobile icons