Update sql and dbmap for table during reload

Update db.go

Update db.go

fix(#1): update query

fix - consider either the field name or db tag as column name

feat - support skipAutoCreateTime and skipAutoUpdateTime tags

Auto update the columns names 'CreatedAt' and 'UpdatedAt'

feat - support for autoCreateTime and autoUpdateTime tag

autoCreateTime - set to current time during insert
autoUpdateTime - set to current time during insert and update

correct module name

update go version

.travis.yml: bump go version