Removed favicons and apple icons links.

As they were not pointing to real files, they were useless.
Will be re-added in further commits (maybe).
Basic rebrush completed.

– Improvement on responsiveness.
- Improvement on legibility (font-size, etc.).
- Cleaner markup.
- Cleaner stylesheet.
- Lacks IE8 support for the moment (but that'll come).
Corrected typos and minor graphic mistakes.
Minor fix on transitions (all → background-color).
Added support for IE8 + fix on typos.