Responsive player design

[kookster]

rather than design two different player "skins", have one that is responsive, and does things like display the image above the player when the height is high enough, or small and has image as thumbnail on left when the player is wide and short.

Consider how this interacts with the builder - can it provide breakpoint values to the player?

[kookster]

This is currently implemented, however new design will impact initial decisions on how this works, and may lead to different choice of configurable rather than strictly responsive layout