Also, keep the html5 boilerplate link in the built CSS.

Fixes #14319: Prevent jumbotron reflow by ensuring padding of .container isn't interferred with by .jumbotron side padding

Fixes #14234: Reset the hack IE8-10 with another hack just for IE11 for temporal inputs and line-height

Fixes #13202: Always use overflow: auto; on .table-responsive to prevent content breaking out of containers

Fixes #14095: Add basic styling for captions, which we've for some reason been missing all this time.

Fixes #13974, #14123: Remove translate3d repaint performance enhancement for text rendering and position wonkiness

Fixes #13953: Remove the progress bar min-width styles for low percentages to avoid jumping progress