Move rng.{cpp,h} from core to rng/ topdir

Add a new class AutoSeeded_RNG that is a RandomNumberGenerator that wraps
up the logic formerly in RandomNumberGenerator::make_rng. make_rng in
fact now just returns a new AutoSeeded_RNG object.

AutoSeeded_RNG is a bit more convenient because

- No need to use auto_ptr
- No need to dereference (same syntax everywhere - it's an underestimated
advantage imo)

Also move the code from timer/timer_base to timer/

1 files changed, 1 insertions, 1 deletions

diff --git a/doc/api.tex b/doc/api.tex
index 68f34c6cc..965773876 100644
--- a/doc/api.tex
+++ b/doc/api.tex
@@ -985,7 +985,7 @@ cryptographic programs)
 
 \begin{verbatim}
 // everyone does:
-std::auto_ptr<RandomNumberGenerator> rng(RandomNumberGenerator::make_rng());
+AutoSeeded_RNG rng;
 
 // Alice
 RSA_PrivateKey priv_rsa(rng, 1024 /* bits */);