nss: Update to version 3.14.3.

This update involves a bunch of fixes on our side:

Update the Gentoo patch to 3.14.1 from http://bit.ly/ZG8OK5 and drop the older
one from http://bit.ly/15mN0X1 (for 3.12.5).

While checking the old patch from Gentoo, I discovered, that the patch added in
revision 06c543b1 wasn't the original one in the
Gentoo repository.

Instead of doing the same again, we now patch up our specific modifications
using sed within the postPatch hook.

In addition to that, we now have another patch from RedHat/Fedora which syncs
the NSS PEM support repository with the latest upstream changes. Patch is coming
from the SRPM at http://koji.fedoraproject.org/koji/rpminfo?rpmID=3772072

 and I
just stripped the "0001-" prefix from the filename.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>