added support for videojs es6 style import
added support for videojs es6 style import

tv2/videojs-ima,googleads/videojs-ima,valse/videojs-ima,shawnbuso/videojs-ima,shawnbuso/videojs-ima,ypavlotsky/videojs-ima,ypavlotsky/videojs-ima,googleads/videojs-ima,tv2/videojs-ima,valse/videojs-ima