requires an NSS update before which is pending, please see bsc bug for details

- MozillaThunderbird 60.5.0:
* FileLink provider WeTransfer to upload large attachments
* Thunderbird now allows the addition of OpenSearch search engines
from a local XML file using a minimal user inferface: [+] button
to select a file an add, [-] to remove.
* More search engines: Google and DuckDuckGo available by default
in some locales
* During account creation, Thunderbird will now detect servers
using the Microsoft Exchange protocol. It will offer the
installation of a 3rd party add-on (Owl) which supports that
protocol.
* Thunderbird now compatible with other WebExtension-based
FileLink add-ons like the Dropbox add-on
MFSA 2019-03 (bsc#1122983)
* CVE-2018-18500 bmo#1510114
Use-after-free parsing HTML5 stream
* CVE-2018-18505 bmo#1497749
Privilege escalation through IPC channel messages
* CVE-2016-5824 bmo#1275400
DoS (use-after-free) via a crafted ics file
* CVE-2018-18501 bmo#1512450 bmo#1517542 bmo#1513201 bmo#1460619
bmo#1502871 bmo#1516738 bmo#1516514
Memory safety bugs fixed in Firefox 65 and Firefox ESR 60.5
- requires NSS 3.36.7
- removed obsolete patch
mozilla-no-stdcxx-check.patch
- rebased patches

- Mozilla Thunderbird 60.4.0:
* New WebExtensions FileLink API to facilitate add-ons