Feature/asf 160

Hello guys, 

here is the my last development, it's still WIP but you can have a first look at the code. Joao, do you want me yo do the homepage in the responsive version ? 
NB : actually, all the sass code is in "_misc-asf.scss" because I prefer let you show me in which files you want to put the code. I will fit to your recommandations of course.

Thanks a lot
Benjamin and Guillaume