Moved from the top-level directory.

Should *not* be included in the nettle library.

Rev: src/nettle/Makefile.am:1.53
Rev: src/nettle/examples/Makefile.am:1.14
Rev: src/nettle/examples/nettle-openssl.c:1.1
Rev: src/nettle/nettle-openssl.c:1.2(DEAD)