ripple/rippled — pull request #765 by rec (2014-12-22 23:12:05+00:00)
Title: Zero out base_uint on destruction.

We discussed this a few days ago.

I did some profiling with this code and when I used callgrind, `base_uint::~base_uint()` didn't show up before _or_ after this change at all - so at least it's not in the top 753 call sites.