Fix error log when loading issues caused by a xorm bug (#7271)

* fix error log when loading issues caused by a xorm bug

* upgrade packages

* fix fmt

* fix Consistency

* fix tests

vendor/github.com/go-sql-driver/mysql/.travis.yml

@@ -1,10 +1,10 @@
 sudo: false
 language: go
 go:
+  - 1.7.x
   - 1.8.x
   - 1.9.x
   - 1.10.x
-  - 1.11.x
   - master
 
 before_install: