Revert "Temporarily revert README deletions from #13470,"

This reverts commit 54284a13c6b503d925bf6f75db2830f1af7fcf98.
Update cover.css

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.
fixes #13912: make radios/checkboxes work with inline forms again
Merge branch 'master' of github.com:twbs/bootstrap

Conflicts:
	dist/css/bootstrap.css.map
	dist/css/bootstrap.min.css
	docs/dist/css/bootstrap.css.map
	docs/dist/css/bootstrap.min.css
Mozilla bug says the fix targeted v31
Merge pull request #13905 from Jimtrim/patch-1

Update cover.css
grunt
Merge pull request #13574 from twbs/reinstate-13470

Delete redundant Grunt info in README (Merge before shipping)
grunt
Merge branch 'master' of github.com:twbs/bootstrap
Remove "pointer" cursor on disabled list-group-item
Change cursor from "default" to "not-allowed" if disabled
bump to v3.2.0
maxcdn urls
fix class names in popover live examples in docs
add comment explaining which demos this JS is for
rm apparent dead code from docs JS

.bs-docs-navbar class doesn't seem to be used anywhere at all
Fix link to compiling info. Fixes #13938.

[skip sauce]
Merge pull request #13942 from twbs/docs-grunt-13938

Fix link to compiling info.
Merge pull request #13939 from twbs/tree-shaking

Remove apparent dead code from docs JS