Update Holder.js to v2.4.1.
Update Holder.js to v2.4.1.

BS3 commits: 961ed36f01b1af749b58ffbf710867c96a10e4dc

2947721120/todc-bootstrap,up2vs/todc-bootstrap,todc/todc-bootstrap,ztx1491/todc-bootstrap,2947721120/googlebt4,mozillo/todc-bootstrap,todc/todc-bootstrap,todc/todc-bootstrap,aaroncnhk/todc-bootstrap