Contravariant Msg type in Dispatchable and LocalActorRef #93

	# on:
	# push:
	# branches:
	# - master # Change this to your default branch
	# jobs:
	# build-nact:
	# runs-on: ubuntu-latest
	# strategy:
	# matrix:
	# node-version: [8.x, 10.x, 12.x]

	# steps:
	# - uses: actions/checkout@v2
	# - name: Use Node.js ${{ matrix.node-version }}
	# uses: actions/setup-node@v1
	# with:
	# node-version: ${{ matrix.node-version }}
	# - run: npm install
	# - run: npm run build --if-present
	# - run: npm test
	# env:
	# CI: true
	# release:
	# name: npm-publish
	# needs:
	# - build-nact
	# runs-on: ubuntu-latest
	# steps:
	# - name: Checkout repository
	# uses: actions/checkout@master
	# - name: Set up Node.js
	# uses: actions/setup-node@master
	# with:
	# node-version: 10.0.0
	# - name: Publish if version has been updated
	# uses: pascalgn/npm-publish-action@1.3.4
	# with:
	# commit_pattern: "^Release (\\S+)"
	# env: # More info about the environment variables in the README
	# GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # Leave this as is, it's automatically generated
	# NPM_AUTH_TOKEN: ${{ secrets.NPM_AUTH_TOKEN }} # You need to set this in your repo settings
	# PUBLISH_COMMAND: yarn

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