Make buttons/links keyboard accessible.
Make :focus on video player controls visible
Fix extra semi-colon.
Merge remote branch 'gauthierm/bug-796049-video-slideshow' into bug-796049-video-slideshow
Clean up and reorganize. Sort functions logically. Move jQuery element creation into individual functions. Move immediately executable code beneath all function definitions.
Merge remote branch 'gauthierm/bug-796049-video-slideshow' into bug-796049-video-slideshow