Log Message:
Update to 3.19.2

* Approved by wiz@.

Changelog:
Network Security Services (NSS) is a patch release for NSS 3.19.

No new functionality is introduced in this release. This release addresses
a backwards compatibility issue with the NSS 3.19.1 release.

Notable Changes:
* In NSS 3.19.1, the minimum key sizes that the freebl cryptographic
implementation (part of the softoken cryptographic module used by default
by NSS) was willing to generate or use was increased - for RSA keys, to
512 bits, and for DH keys, 1023 bits. This was done as part of a security
fix for Bug 1138554 / CVE-2015-4000. Applications that requested or
attempted to use keys smaller then the minimum size would fail. However,
this change in behaviour unintentionally broke existing NSS applications
that need to generate or use such keys, via APIs such as
SECKEY_CreateRSAPrivateKey or SECKEY_CreateDHPrivateKey.

In NSS 3.19.2, this change in freebl behaviour has been reverted. The fix
for Bug 1138554 has been moved to libssl, and will now only affect the
minimum keystrengths used in SSL/TLS.