rm redundant grid column classes from responsive utilities demos

BS3 commits: 89d437dedac599e0edf2320a55629773f4be1423
Update dependencies.

BS3 commits: e26fcf470ffb8b98c9f227a06161854e118bc007
Add type to buttons in tooltip-viewport example

BS3 commits: a332c18c8793dee45e21cb3872d369600f394757
Fix anchor link

BS3 commits: 4e17a9be189e50bab2dc27497e853df18c6104ee
Fixes 14687: Include video element in responsive embed

BS3 commits: 8e25695d09002eb528876435ebb4dadaabab9359
grunt. Fixes 14687: Include video element in responsive embed. grunt

BS3 commits: 0d04dcaebd7b0b0427ae3a6e79ddd86cd981b58f,
8e25695d09002eb528876435ebb4dadaabab9359,
121b204b146a799f65c412b7d2cbddb9fe79dc10
grunt. grunt

BS3 commits: 0d04dcaebd7b0b0427ae3a6e79ddd86cd981b58f,
121b204b146a799f65c412b7d2cbddb9fe79dc10
grunt

BS3 commits: 0d04dcaebd7b0b0427ae3a6e79ddd86cd981b58f
Fixes 14687: Include video element in responsive embed. grunt

BS3 commits: 8e25695d09002eb528876435ebb4dadaabab9359,
121b204b146a799f65c412b7d2cbddb9fe79dc10