add extension-specific styling
Merge branch 'master' of https://github.com/wellcomelibrary/player
merge master
Merge branch 'master' of https://github.com/wellcomelibrary/player
Merge branch 'wellcome' of https://github.com/wellcomelibrary/player into wellcome
moved Extension.CREATED event to after dynamic modules have loaded
Merge branch 'master' into wellcome
updated submodules