Fix golint import in travis.yml

.travis.yml

@@ -10,7 +10,7 @@ go:
   - "1.11"
 before_install:
   - npm install -g jshint
-  - go get -u github.com/golang/lint/golint
+  - go get -u golang.org/x/lint/golint
 script:
   - jshint ui/static/js/*.js
   - make lint

model/feed_test.go

@@ -2,7 +2,7 @@
 // Use of this source code is governed by the Apache 2.0
 // license that can be found in the LICENSE file.
 
-package model // import "miniflux.app/reader/model"
+package model // import "miniflux.app/model"
 
 import (
 	"testing"