数据库换成mysql
Merge branch 'master' of https://github.com/skyline-gz/zrquan
使用utf8mb4作为charset，并添加了mysqlpls.rb以解决rails用utf8mb4时migrate的bug
Merge branch 'master' of https://github.com/skyline-gz/zrquan
Merge branch 'master' of https://github.com/skyline-gz/zrquan
Merge branch 'master' of https://github.com/skyline-gz/zrquan