Update thumbnails col classes
Update thumbnails col classes

BS3 commit 72fb2caf00b4d4a7c941bab5f98587efb751e21e

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