Fix carousel control margin asymmetry
Re-implement Universal Analytics

X-Refs:
https://github.com/twbs/bootstrap/commit/b2a67ffe55f5fedb0ae1d5dff331687c3e744be0
https://github.com/twbs/bootstrap/commit/c97e6d5cad74d20257d28734f85311ef5d00b560
fix grammar in "Underlined text" example
Fixed typo in Responsive Tables CSS docs
#12790: Add link to unofficial Italian translation
Merge pull request #13284 from chasingtheflow/master

Fixed typo in Responsive Tables CSS docs
Merge pull request #13242 from killthekitten/fix-carousel-controls

Fix carousel-control margin asymmetry
grunt dist