Update import path of fsnotify

Rename "gopkg.in/fsnotify.v1" to "github.com/fsnotify/fsnotify"
per upstream recommendation.

See https://github.com/fsnotify/fsnotify/issues/108 for rationale.

Dockerfile

@@ -34,7 +34,7 @@ RUN go get github.com/stretchr/testify/assert \
 	&& go get golang.org/x/text/unicode/norm \
 	&& go get github.com/yosssi/ace \
 	&& go get github.com/spf13/nitro \
-	&& go get gopkg.in/fsnotify.v1
+	&& go get github.com/fsnotify/fsnotify
 
 COPY . /go/src/github.com/spf13/hugo
 RUN go get -d -v github.com/spf13/hugo

commands/hugo.go

@@ -33,6 +33,7 @@ import (
 
 	"regexp"
 
+	"github.com/fsnotify/fsnotify"
 	"github.com/spf13/afero"
 	"github.com/spf13/cobra"
 	"github.com/spf13/fsync"
@@ -44,7 +45,6 @@ import (
 	jww "github.com/spf13/jwalterweatherman"
 	"github.com/spf13/nitro"
 	"github.com/spf13/viper"
-	"gopkg.in/fsnotify.v1"
 )
 
 // MainSite represents the Hugo site to build. This variable is exported as it

hugolib/site.go

@@ -32,6 +32,7 @@ import (
 	"path"
 
 	"github.com/bep/inflect"
+	"github.com/fsnotify/fsnotify"
 	"github.com/spf13/afero"
 	"github.com/spf13/cast"
 	bp "github.com/spf13/hugo/bufferpool"
@@ -45,7 +46,6 @@ import (
 	jww "github.com/spf13/jwalterweatherman"
 	"github.com/spf13/nitro"
 	"github.com/spf13/viper"
-	"gopkg.in/fsnotify.v1"
 )
 
 var _ = transform.AbsURL

watcher/batcher.go

@@ -16,7 +16,7 @@ package watcher
 import (
 	"time"
 
-	"gopkg.in/fsnotify.v1"
+	"github.com/fsnotify/fsnotify"
 )
 
 type Batcher struct {