Go modules env variable

Adding support for go modules inside travis script

.travis.yml

@@ -11,8 +11,8 @@ before_install:
 - go get github.com/Stephen304/goscrape
 - go get github.com/anacrolix/torrent
 before_script:
-- go vet
-- go test -v ./...
+- env GO111MODULE=on go vet
+- env GO111MODULE=on go test -v ./...
 after_success:
 - overalls -project=github.com/NyaaPantsu/nyaa -covermode=count -debug
 - goveralls -coverprofile="overalls.coverprofile" -service=travis-ci

package.sh

@@ -15,7 +15,7 @@ for i in "${OSes[@]}"; do
 	cc=${arr[1]}
 	rm -f nyaa nyaa.exe
 	echo -e "\nBuilding $os..."
-	echo GOOS=$os GOARCH=amd64 CC=$cc CGO_ENABLED=1 go build -v -ldflags="-X main.buildversion=`git rev-parse HEAD`"
-	GOOS=$os GOARCH=amd64 CC=$cc CGO_ENABLED=1 go build -v -ldflags="-X main.buildversion=$(git rev-parse HEAD)"
+	echo GOOS=$os GOARCH=amd64 CC=$cc CGO_ENABLED=1 GO111MODULE=on go build -v -ldflags="-X main.buildversion=`git rev-parse HEAD`"
+	GOOS=$os GOARCH=amd64 CC=$cc CGO_ENABLED=1 GO111MODULE=on go build -v -ldflags="-X main.buildversion=$(git rev-parse HEAD)"
 	zip -9 -r dist/nyaa-${version}_${os}_amd64.zip os public templates service/user/locale *.md nyaa nyaa.exe
 done