Convert default arguments documentation for `wp_dropdown_users()` into a hash notation.

See #28841.

Built from https://develop.svn.wordpress.org/trunk@29115


git-svn-id: http://core.svn.wordpress.org/trunk@28901 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Convert default arguments documentation for `wp_insert_user()` into a hash notation.

See #28841.

Built from https://develop.svn.wordpress.org/trunk@29116


git-svn-id: http://core.svn.wordpress.org/trunk@28902 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Editor scrolling: disable on mobile devices and hide the resize handle. See #28328.
Built from https://develop.svn.wordpress.org/trunk@29117


git-svn-id: http://core.svn.wordpress.org/trunk@28903 1a063a9b-81f0-0310-95a4-ce76da25c4cd