Go 1.5 Release Candidate 1 is released

DL: https://golang.org/dl/#go1.5rc1
Notes: https://tip.golang.org/doc/go1.5
Issues: https://golang.org/issue/new ----------------------- 以下是精选回复-----------------------

答:最近几个版本发的太勤了吧，猜一下估计有bug没修完=.=
答:试用了一下vendor