src: fix v8 PRNG entropy seeding
src: fix v8 PRNG entropy seeding

It was pointed out by a member of the V8 team that the call to
V8::SetEntropySource() should come before V8::Initialize().

See also commit 7ac2391.

dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node