Added specificity note to docs per issue #13332
Fixed typo and added leading space
Merge pull request #13358 from Jakobovski/docs-improvements-#13332

Added specificity note to docs per issue #13332
fix #13360 by making deprecation notices visible in customizer
fix #13337 by mentioning removal of .progress-* contextual classes
quote data-* attribute value in docs JS per best-practices
Merge pull request #13373 from twbs/fix-13360

Make variable deprecation notices visible in customizer
quote attribute value in selector in offcanvas.js
quote attribute value in selector in JS docs example
quote attribute values in selectors in JS unit tests for consistency
rename jquery.js -> jquery.min.js since it's minified
Merge pull request #13381 from twbs/vendor-jquery-min

rename jquery.js -> jquery.min.js since it's minified
quote attribute value in ^= selector in button.js
Tweak JS style and the relevant JSHint and JSCS checks.
Comply to the new style.
Remove `laxbreak`.
Remove `boss`.
Enable `requireCurlyBraces`.
Enable `es3`.
Switch to using plain `if/else` statements when there's no assignment.

The minizer outputs the same code anyway, and this has better readability.