Remove unused JS and CSS
POC slider video
Merge branch 'develop' into feature/video-slider

Conflicts:
	source/index.html.haml
	source/layouts/_circular_navigation.haml
	source/layouts/layout.haml
	source/stylesheets/_home.css.sass
	source/stylesheets/_video-navigation.css.sass
Add image for homepage videos
Show an image when the video is loading
Merge pull request #32 from alpinelab/feature/video-loader

Feature/video loader