go.blog/blog: add -reload flag to reload content on each page load
go.blog/blog: add -reload flag to reload content on each page load

R=r
CC=golang-dev
https://codereview.appspot.com/30040043

webfd/go-zh.blog,bryanxu/go-zh.blog,bryanxu/go-zh.blog,webfd/go-zh.blog,d0f/go-zh.blog,d0f/go-zh.blog