nss, nss-util, nss-softokn security, bug fix, and enhancement update

nss 3.16.2-2.0.1.el70 - Added nss-vendor.patch to change vendor 3.16.2-2 - Restore missing options descriptions fix for certutil manpage - Document certutil options --dump-ext-val, --extGeneric, and --extSAN - Related: Bug 1124659 - Rebase RHEL 7 to at least NSS 3.16.1 3.16.2-1 - Rebase to...