Refs #10049
Source for compatibility info: http://caniuse.com/#feat=pointer-events

Don't copy-pasta all the Sass docs because fuck keeping that up to date. Instead, point to https://github.com/twbs/bootstrap-sass/blob/master/README.md.

Clarify that the focus docs styles are not in the repo, per https://github.com/twbs/bootstrap-sass/issues/497

This changes the order of component variations throughout the repo (code and docs) to be more consistent.
The order now used everywhere is the one most frequently found in the repo before:
Default, Primary, Success, Info, Warning, Danger

Refs #12083 & #12037

* Deprecate .pull-right class for .blockquote-reverse
* Move font-size change to the parent, blockquote, instead of setting on the p element to allow more flexible content