jQuery: bring jquery.js back into the WordPress SVN repo and backport the patch from 3.4.0.

Merges [45342] to the 5.1 branch.

Props MikeNGarrett, peterwilsoncc, azaozz.
Fixes #47020.

git-svn-id: https://develop.svn.wordpress.org/branches/5.1@46014 602fd350-edb4-49c9-b593-d223f7449a82

Gruntfile.js

@@ -171,7 +171,6 @@ module.exports = function(grunt) {
 						[ WORKING_DIR + 'wp-includes/js/jquery/jquery-migrate.js' ]: [ './node_modules/jquery-migrate/dist/jquery-migrate.js' ],
 						[ WORKING_DIR + 'wp-includes/js/jquery/jquery-migrate.min.js' ]: [ './node_modules/jquery-migrate/dist/jquery-migrate.min.js' ],
 						[ WORKING_DIR + 'wp-includes/js/jquery/jquery.form.js' ]: [ './node_modules/jquery-form/src/jquery.form.js' ],
-						[ WORKING_DIR + 'wp-includes/js/jquery/jquery.js' ]: [ './node_modules/jquery/dist/jquery.min.js' ],
 						[ WORKING_DIR + 'wp-includes/js/masonry.min.js' ]: [ './node_modules/masonry-layout/dist/masonry.pkgd.min.js' ],
 						[ WORKING_DIR + 'wp-includes/js/twemoji.js' ]: [ './node_modules/twemoji/2/twemoji.js' ],
 						[ WORKING_DIR + 'wp-includes/js/underscore.js' ]: [ './node_modules/underscore/underscore.js' ],

package-lock.json

@@ -8922,9 +8922,9 @@
 			}
 		},
 		"jquery": {
-			"version": "1.12.4",
-			"resolved": "https://registry.npmjs.org/jquery/-/jquery-1.12.4.tgz",
-			"integrity": "sha1-AeHfuikP5z3rp3zurLD5ui/sngw="
+			"version": "3.4.1",
+			"resolved": "https://registry.npmjs.org/jquery/-/jquery-3.4.1.tgz",
+			"integrity": "sha512-36+AdBzCL+y6qjw5Tx7HgzeGCzC81MDDgaUP8ld2zhx58HdqXGoBd+tHdrBMiyjGQs0Hxs/MLZTu/eHNJJuWPw=="
 		},
 		"jquery-color": {
 			"version": "github:jquery/jquery-color#95402e5b2f1184ab2de7014aeef0a90f2bee0a40",

package.json

@@ -95,7 +95,6 @@
 		"element-closest": "^2.0.2",
 		"formdata-polyfill": "3.0.13",
 		"imagesloaded": "3.2.0",
-		"jquery": "1.12.4",
 		"jquery-color": "github:jquery/jquery-color#2.1.1",
 		"jquery-form": "4.2.1",
 		"jquery-hoverintent": "1.8.3",