tqchen 20da8bbe50 Squashed 'subtree/rabit/' changes from 7568f75..f52daf9
f52daf9 make timer cross platform

git-subtree-dir: subtree/rabit
git-subtree-split: f52daf9be158c036c6d59058335f417cb91c82cd
2015-04-19 00:05:15 -07:00
..