Video homepage

with some work to still be done!
Merge branch 'video-homepage' of git://github.com/warpling/OpenFarm into warpling-video-homepage
Updating test to work with copy change
Better homepage centering
Actually use table centering for home elements
Fixing special case styling the logout button
Merge branch 'video-homepage' of git://github.com/warpling/OpenFarm into warpling-video-homepage
Make reference to nested SCSS files. I think this might be the best way forward
Add errors to gemfile
Merge branch 'master' of https://github.com/FarmBot/OpenFarm into warpling-video-homepage
Merge pull request #265 from simonv3/warpling-video-homepage

Warpling's Video Homepage