[W50] PYChen: 12/09 - 12/12
[W50] Sean Lee: 12.05 ~ 12.12
Merge pull request #62 from mpizza/W50-PYChen

[W50] PYChen: 12/09 - 12/12
Merge pull request #63 from weilonge/W50_1208_1212

[W50] Sean Lee: 12.05 ~ 12.12
[W50] dwi2: 2014-12-09 ~ 2014-12-12
[W50] yifan: 12/08 - 12/12
Merge pull request #64 from dwi2/20141215

[W50] dwi2: 2014-12-09 ~ 2014-12-12
Merge pull request #65 from begeeben/yifan

[W50] yifan: 12/08 - 12/12