fix the bug: mysql packets.go:33: unexpected EOF

fix the bug mysql connection error: packets.go:33: unexpected EOF

optimized initialization error message

1.optimized initialization error message logging;
2. use http.server for stu example, for more flexiable config for http.server;

update go mod bug

v0.7.0

update vendor

update go version 1.12 to 1.11

v0.6.0

update go version to 1.11

release

v0.5.0

chore: date is Fri Mar 29 14:55:09 CST 2019.

release by github page

release by mannual