Prevent bulk actions from being performed when Filter button is clicked.

props jesin.
fixes #28555.
Built from https://develop.svn.wordpress.org/trunk@28916


git-svn-id: http://core.svn.wordpress.org/trunk@28715 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Improve inline documentation for `date_i18n()`, `_http_build_query()`, `wp_checkdate()`, and `wp_auth_check()`.

Props morganestes.
See #26185.

Built from https://develop.svn.wordpress.org/trunk@28917


git-svn-id: http://core.svn.wordpress.org/trunk@28716 1a063a9b-81f0-0310-95a4-ce76da25c4cd
General inline documentation improvements in wp-includes/functions.php.

First run. See #26185.

Built from https://develop.svn.wordpress.org/trunk@28918


git-svn-id: http://core.svn.wordpress.org/trunk@28717 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Secure embeds in the editor (first run):
- When the user pastes an embeddable http URL, try to get the https embed.
- If an embed provider doesn't support ssl embeds, show a placeholder/error message.
- Revise the way we return error messages.
See #28195, #28507.
Built from https://develop.svn.wordpress.org/trunk@28919


git-svn-id: http://core.svn.wordpress.org/trunk@28718 1a063a9b-81f0-0310-95a4-ce76da25c4cd