Merge pull request #1 from xseignard/master

A fucking big commit!
add infinite scroll
fix some bugs
some scrolling bugs
bg-color
ghpages
ghpages
some stuffs
videojs fix bug
test IE 9 slide
another push
centered play button (videojs)
header fix some rwd behaviour
adjust video rwd behaviour
avancement
avance
centrage contrib
centrage contrib
gitignore
uploads folder