Delete redundant Grunt info in README (Merge before shipping)

Update cover.css

Conflicts:
	dist/css/bootstrap.css.map
	dist/css/bootstrap.min.css
	docs/dist/css/bootstrap.css.map
	docs/dist/css/bootstrap.min.css

Revert a991cd57.

This reverts commit e31c2edf.

This reverts commit 25ca5131.

Refs #13914
Refs https://github.com/GoalSmashers/clean-css/issues/302

Reenable additional Sauce browsers

Enable retrying of timed-out Sauce tests

Move variable declaration before its use (for Sass)

Big thanks to @gvas for https://github.com/axemclion/grunt-saucelabs/pull/136 ! <3

update shrinkwrap too

In Sass, variable must be declared before it is used.
This also removes Miscellaneous section, because horizontal line color
and form / list paddings are Typography.

Partly revert cb7eb674

Works around #13914.

We might give it another go in the future but the stuff this breaks over the time does not justify having it enabled. The gain in size is negligible:

dist/css/bootstrap.min.css: 108.65 kB → 109.5 kB
dist/css/bootstrap-theme.min.css: 18.84 kB → 18.86 kB
docs/assets/css/docs.min.css: 20.44 kB → 20.61 kB

Fixes #13911

Conflicts:
	js/carousel.js

Revert UMD for now, due to #13812.

https://github.com/twbs/bootstrap/commit/32bde78e1996a92e6b801e1f4a475d5ab48685f8

Moved the inset box-shadow to .site-wrapper in order to keep the shadow at the edges even if content exceeds viewport and needs scrolling.

Use @font-size-small variable to calculate <small> font-size

Will hopefully revert this reversion and land a fully-working version of UMD in v3.3.0.

Revert "some changes from #13801 - add strict mode back and =="
This reverts commit 2b302f69.

Revert "Fix regression of #10038 introduced by #13772"
This reverts commit e9d6756a.

Revert "MD/CommonJS/Globals #12909"
This reverts commit 1c6fa901.

Revert "address #13811"
This reverts commit f347d7d9.

Conflicts:
    js/carousel.js
    js/collapse.js
    js/dropdown.js
    js/modal.js
    js/tab.js
    js/tooltip.js

Remove broken link