VID-927 setting up new video thumbnail guidelines
VID-927 more prototype code for video thumbnail proposal
styles for css play button
starting on different sizes of play buttons
VID-927 adding different size options to thumbnails and other stuff
VID-927 adding duration and responsive class to video thumbnails
code organization
remove falsey comment
adding some ntoes
Merge branch 'dev' into VID-927-tohtml
Merge branch 'dev' into VID-927-tohtml
Merge branch 'VID-927-tohtml' into vid-930