[Compass-ci] git count

Cao Xueliang is our code star, thanks Cao Xueliang!

baijing@crystal ~/todo/bin% ./git-count 16 Cao Xueliang 15 Wu Zhende 10 Li Yuanchao 6 Liu Yinsi 6 Yu Chuan 5 Liu Shaofei 5 Luan Shengde 4 Bai Jing 3 Wang Chenglong 2 Lu Weitao 2 Wang Yong 1 Xu Xijian 1 Lin Jiaxin 1 Li Ping 0 Du Kaitian 0 Wei Jihui 0 Wu Fengguang 0 Zhang Yale 0 Cui Yili 0 Zhang Dewan