Update project to use golang v1.11

.travis.yml

@@ -1,14 +1,14 @@
 language: go
 go:
-  - "1.10.3"
+  - "1.11"
 sudo: required
 services:
   - docker
 env:
   - "PATH=/home/travis/gopath/bin:$PATH"
 before_install:
   - go get -u github.com/axw/gocov/gocov github.com/mattn/goveralls github.com/tcnksm/ghr
-  - curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | bash -s -- -b $GOPATH/bin v1.10
+  - curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | bash -s -- -b $GOPATH/bin v1.15
 install:
   - echo "No external dependencies required. Skipping travis default library dependency setup to use vendors..."
 script:

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.10
+FROM golang:1.11
 WORKDIR /go/src/github.com/OpenBazaar/openbazaar-go
 COPY . .
 RUN go build --ldflags '-extldflags "-static"' -o /opt/openbazaard .

Dockerfile.dev

@@ -1,4 +1,4 @@
-FROM golang:1.10
+FROM golang:1.11
 VOLUME /var/lib/openbazaar
 
 RUN wget https://www.python.org/ftp/python/3.6.0/Python-3.6.0.tgz && \
@@ -29,7 +29,7 @@ RUN go get -u github.com/gogo/protobuf/proto \
               github.com/icrowley/fake \
               github.com/derekparker/delve/cmd/dlv
 
-RUN curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | bash -s -- -b $GOPATH/bin v1.10
+RUN curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | bash -s -- -b $GOPATH/bin v1.15.0
 
 WORKDIR /go/src/github.com/OpenBazaar/openbazaar-go
 

build.sh

@@ -3,8 +3,7 @@
 TARGETS=${1:-windows/386,windows/amd64,darwin/amd64,linux/386,linux/amd64,linux/arm}
 
 export CGO_ENABLED=1
-docker pull karalabe/xgo-latest
 go get github.com/karalabe/xgo
 mkdir dist && cd dist/
-xgo -go=1.10 --targets=$TARGETS ../
+xgo -go=1.11 --targets=$TARGETS ../
 chmod +x *