applying new video thumbnails to article videos
applying new thumbnails to related videos
fixing video thumbnails styles and removing some numbers after the decimal
Merge branch 'dev' into new-video-thumbnails
Merge branch 'dev' into new-video-thumbnails
adjusting styles for duration in new video thumbnails
adding new play buttons to oasis sprite
updating styles to use images for arrows
removing play-arrow and unused mixin
Merge branch 'dev' into new-video-thumbnails

Conflicts:
	skins/oasis/css/core/video-thumbnail.scss
removing play-arrow
updates to sprite psd
fixing order of css rules
fixing thumbnail styles
removing new thumbnail styles from article and related video spaces
Merge pull request #2517 from Wikia/new-video-thumbnails

New video thumbnails