Security fix for the ALT Linux 10 package thunderbird version 60.4.0-alt1

Dec. 24, 2018 Andrey Cherepanov 60.4.0-alt1 - New version 60.4.0. - Enigmail 2.0.9. - Fixes: + CVE-2018-17466 Buffer overflow and out-of-bounds read in ANGLE library with TextureStorage11 + CVE-2018-18492 Use-after-free with select element + CVE-2018-18493 Buffer overflow in accelerated 2D canvas...