Update normalize.min.css to v3.0.0.
Improve header items.
Update _config.yml.

Remove unneeded variable and exclude README.md.
Move the download link to _config.yml.

This avoids repetition.
Simplify post.html.

Those classes are non existent.
Use a favicon.ico with 32x32 and 16x16 icons.
Merge pull request #13 from XhmikosR/master

Tweak header items and update normalize.css.