Log Message:
Update to 3.27.1

Changelog:
The NSS team has released Network Security Services (NSS) 3.27.1.

This is a patch release to address a TLS compatibility issue 
that some applications experienced with NSS 3.27.

Notable Changes:
Availability of the TLS 1.3 (draft) implementation has been re-disabled
in the default build.

Previous versions of NSS made TLS 1.3 (draft) available only when compiled
with NSS_ENABLE_TLS_1_3. NSS 3.27 set this value on by default, allowing
TLS 1.3 (draft) to be disabled using NSS_DISABLE_TLS_1_3, although the
maximum version used by default remained TLS 1.2.

However, some applications query the list of protocol versions that are
supported by the NSS library, and enable all supported TLS protocol versions.
Because NSS 3.27 enabled compilation of TLS 1.3 (draft) by default, it caused
those applications to enable TLS 1.3 (draft). This resulted in connectivity
failures, as some TLS servers are version 1.3 intolerant, and failed to
negotiate an earlier TLS version with NSS 3.27 clients.