x264: r2455 stable, r2479 devel

Update to latest stable and master versions.

Closes #31909.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
x264: use HTTPS links

Use HTTPS on homepage and git links, change single quotes to double.

Closes #31909.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
x264: update r2455 bottle.