Add data-ak-youtubemodal-video-start-seconds=“xx” option.
Add data-ak-youtubemodal-video-start-seconds=“xx” option.

commit dd06451cce975ac5bbc18a4233449dd1873ae669
Author: Scott Yano <stmhawaii@gmail.com>
Date:   Wed Jun 20 16:46:36 2018 +0900

    Remove extra comma.

commit 6aa93381dd769fb91b73edfa3ebd241da53510e2
Author: Scott Yano <stmhawaii@gmail.com>
Date:   Wed Jun 20 16:45:57 2018 +0900

    Change starttime -> opt_startTime.

commit f35562745d111ee5168bf21e4922fa5b56fa9778
Author: Scott Yano <stmhawaii@gmail.com>
Date:   Wed Jun 20 09:12:29 2018 +0900

    Add  data-ak-youtubemodal-video-start-seconds=“xx” option.

grow/airkit