homepage tweaks

paralax scrolling and general styling - unfinished.
Homepage parallax and general styling
Homepage copy tweak
homepage tweaks and add video
Merge branch 'master' into homepage-ui

Conflicts:
	app/assets/stylesheets/application.css.less
	app/views/layouts/application.html.haml
Removed unused padding
Merge pull request #134 from theodi/homepage-ui

Homepage ui