Imports github.com/hawx/img/exif github.com/jinzhu/gorm github.com/lib/pq github.com/shaoshing/train github.com/zenazn/goji github.com/zenazn/goji/web gopkg.in/yaml.v1 Standard library imports bufio crypto/md5 encoding/hex encoding/json fmt io io/ioutil math net/http os path/filepath regexp strconv strings time