- [grunt] added `grunt-webfont` for generation of iconic fonts
- [assets] added svg icons
- [sass] added generated icons into `styles.scss`
- [sass] updated layouts, partials and index page to use newly-added icons
- [sass] adjuested `.centered-link` to produce constant width independently from icons widths
- [sass] fixed paths
- [misc] added `styles/generated/` to `.gitignore`