Update to golang 1.13 (#754)

* Update to use golang 1.13
* Update node and ubuntu versions
* Update compiler version

docker/compiler/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.11.5
+FROM golang:1.13.15
 
 LABEL maintainer="stashappdev@gmail.com"
 
@@ -9,7 +9,7 @@ ENV PACKR2_DOWNLOAD_URL=https://github.com/gobuffalo/packr/releases/download/v${
 
 # Install tools
 RUN apt-get update && apt-get install -y apt-transport-https
-RUN curl -sL https://deb.nodesource.com/setup_10.x | bash -
+RUN curl -sL https://deb.nodesource.com/setup_lts.x | bash -
 
 # prevent caching of the key
 ADD https://dl.yarnpkg.com/debian/pubkey.gpg yarn.gpg
@@ -21,7 +21,7 @@ RUN apt-get update && \
     apt-get install -y automake autogen \
     libtool libxml2-dev uuid-dev libssl-dev bash \
     patch make tar xz-utils bzip2 gzip sed cpio \
-	gcc-6-multilib g++-6-multilib gcc-mingw-w64 g++-mingw-w64 clang llvm-dev \
+	gcc-8-multilib gcc-mingw-w64 g++-mingw-w64 clang llvm-dev \
 	gcc-arm-linux-gnueabi libc-dev-armel-cross linux-libc-dev-armel-cross \
     gcc-arm-linux-gnueabihf libc-dev-armhf-cross \
     gcc-aarch64-linux-gnu libc-dev-arm64-cross \

docker/compiler/Makefile

@@ -1,6 +1,6 @@
 user=stashapp
 repo=compiler
-version=3
+version=4
 
 latest:
 	docker build -t ${user}/${repo}:latest .

docker/compiler/README.md

@@ -1 +1,3 @@
-Modified from https://github.com/bep/dockerfiles/tree/master/ci-goreleaser
+Modified from https://github.com/bep/dockerfiles/tree/master/ci-goreleaser
+
+When the dockerfile is changed, the version number should be incremented in the Makefile and the new version tag should be pushed to docker hub. The `scripts/cross-compile.sh` script should also be updated to use the new version number tag, and `.travis.yml` needs to be updated to pull the correct image tag.