ref: 84c1f3a4eec95f0feaf898bd5b7dd3edee00a7e3
parent: 7574e5c1dbaa4c3f249e496f14c8c898e8f21cab
parent: 090229f8a195f5f503f0e71b663c2578554e2b2c
author: ruil2 <ruil2@cisco.com>
date: Wed Jun 11 09:25:48 EDT 2014
Merge pull request #945 from mstorsjo/log-callback Don't use a global trace level, allow user-specified trace callbacks