Merge pull request #3597 from wangyan42164:cascade_cl_opt
authorVadim Pisarevsky <vadim.pisarevsky@gmail.com>
Thu, 15 Jan 2015 11:24:25 +0000 (11:24 +0000)
committerVadim Pisarevsky <vadim.pisarevsky@gmail.com>
Thu, 15 Jan 2015 11:24:25 +0000 (11:24 +0000)

Trivial merge