ci: replace travis & appveyor with github (#29)

* use npx in package.json

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,11 @@
+### system info
+
+Please report your Node.js version, and Haraka version by running this shell script on your Haraka server and replacing this section with the output.
+
+echo "Haraka | $(haraka -v)"; echo " --- | :--- "; echo "Node | $(node -v)";
+
+### Expected behavior
+
+### Observed behavior
+
+### Steps to reproduce

.github/workflows/ci-test.yml

@@ -0,0 +1,32 @@
+name: Tests
+
+on: [ push ]
+
+jobs:
+
+  ci-test:
+
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      matrix:
+        os:
+          - ubuntu-latest
+          - windows-latest
+        node-version:
+          - 12
+          - 14
+          - 16
+      fail-fast: false
+
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-node@v2
+      name: Node ${{ matrix.node-version }} on ${{ matrix.os }}
+      with:
+        node-version: ${{ matrix.node-version }}
+
+    - run: npm install
+    - run: npm test
+      env:
+        CI: true

.github/workflows/coveralls.yml

@@ -0,0 +1,32 @@
+name: Test Coverage
+
+# on: [ push ]  # use this for non-plugins
+# haraka-plugin-*, dummy event that never triggers
+on: [ milestone ]
+
+jobs:
+
+  coverage:
+
+    runs-on: ubuntu-latest
+
+    steps:
+
+    - uses: actions/checkout@v2
+    - uses: actions/setup-node@v2
+      with:
+        node-version: '12'
+
+    - name: Install
+      run: |
+        npm install
+        npm install --no-save nyc codecov
+
+    - run: npx nyc --reporter=lcovonly npm test
+      env:
+        NODE_ENV: cov
+
+    - name: Submit to Coveralls
+      uses: coverallsapp/github-action@master
+      with:
+        github-token: ${{ secrets.github_token }}

.github/workflows/lint.yml

@@ -0,0 +1,26 @@
+name: Lint
+
+on: [ push ]
+
+jobs:
+
+  lint:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version:
+          - '12'
+
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-node@v2
+      name: Node.js ${{ matrix.node-version }}
+      with:
+        node-version: ${{ matrix.node-version }}
+
+    - run: npm install
+    - run: npm run lint
+      env:
+        CI: true

package.json

@@ -4,10 +4,10 @@
   "description": "display log entries from haraka log files via HTTP",
   "main": "index.js",
   "scripts": {
-    "test": "./node_modules/.bin/mocha",
-    "lint": "./node_modules/.bin/eslint *.js test",
-    "lintfix": "./node_modules/.bin/eslint --fix *.js test",
-    "cover": "./node_modules/.bin/istanbul cover ./node_modules/.bin/_mocha"
+    "test": "npx mocha",
+    "lint": "npx eslint *.js test",
+    "lintfix": "npx eslint --fix *.js test",
+    "cover": "npx istanbul cover npx mocha"
   },
   "repository": {
     "type": "git",