Normalize update

- [fix] Remove the gray background color from active links in IE 10.
- [new] Drop some IE6 & IE7 specific consistency fixes (should not change anything since we redefine all typography & form elements anyway)
- [contenscious] Normalize is treated as part of the project instead of being pulled as a dependency

![ ](http://2.bp.blogspot.com/_MlS6fGz-GNE/TU7N-LJJUgI/AAAAAAAAAvY/F6oIO7S0nSs/s400/3384%252520-%252520animated_gif%252520old%252520steam%252520update%252520valve.jpg)