should support py3 now. add travis ci.
should support py3 now. add travis ci.

chiu/vincent,JPO1/vincent,KAPPS-/vincent,wrobstory/vincent,JPO1/vincent,qiwsir/vincent,myusuf3/vincent,CrazyGuo/vincent,taohaoge/vincent,CrazyGuo/vincent,myusuf3/vincent,xunyou/vincent,qiwsir/vincent,KAPPS-/vincent,springcoil/vincent,wrobstory/vincent,chiu/vincent,xunyou/vincent,taohaoge/vincent,springcoil/vincent