update travis ci config

.travis.yml

@@ -1,15 +1,10 @@
 language: go
 go: 
- - 1.9.x
- - 1.10.x
+ - 1.12
 
 install:
  - go get -v
- - go get -v github.com/bitly/go-simplejson
- - go get -v github.com/fatih/color
- - go get -u github.com/alecthomas/gometalinter
+ - go get -v github.com/smartystreets/goconvey/convey
+ - curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b $(go env GOPATH)/bin v1.15.0
 script:
- - gometalinter --install
- - gometalinter --config=./gometalinter.json --vendor ./...
- - cp ./config_sample.json ./config.json
- - go test -v ./...
+ - golangci-lint run --fast