fix #280
fix #280

更新 https://github.com/lib/pq
admpub/build-web-application-with-golang,astaxie/build-web-application-with-golang,astaxie/build-web-application-with-golang,admpub/build-web-application-with-golang,admpub/build-web-application-with-golang,admpub/build-web-application-with-golang,faxriddin/build-web-application-with-golang,songqii/build-web-application-with-golang,WangKaimin/build-web-application-with-golang,faxriddin/build-web-application-with-golang,songqii/build-web-application-with-golang,astaxie/build-web-application-with-golang,WangKaimin/build-web-application-with-golang