Replace travis with GitHub action. Closes #561

- replaced `.travis.yml` with a github-action
- renamed travis script in `package.json` to `github-build`
- updated to node version 14, because we used it in travis, too
- added es-disable an export in `store.ts` to  make standard green
- added HTMLElement to global to make the standard green

Co-authored-by: David Gontrum <david.gontrum@leanovate.de>

Author: Gontrum

.coveralls.yml

@@ -0,0 +1,34 @@
+name: Build and test 
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Cache node modules
+      uses: actions/cache@v2
+      env: 
+        cache-name: cache-node-modules
+      with:
+        path: ~/.npm
+        key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package-lock.json') }}
+        restore-keys: |
+          ${{ runner.os }}-build-${{ env.cache-name }}-
+          ${{ runner.os }}-build-
+          ${{ runner.os }}-
+
+    - name: Build and test
+      uses: actions/setup-node@v1
+      with:
+        node-version: '14.x'
+    - run: npm ci
+    - run: npm run github-build
+
+    - name: Coveralls
+      uses: coverallsapp/github-action@master
+      with:
+        github-token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/html5sortable.yml

@@ -5,8 +5,7 @@
 
 
 <h1> HTML5Sortable </h1>
-
-[![Build Status](https://img.shields.io/travis/lukasoppermann/html5sortable/master.svg?style=flat-square)](https://travis-ci.org/lukasoppermann/html5sortable) [![Software License](https://img.shields.io/badge/license-MIT-brightgreen.svg?style=flat-square)](LICENSE.md) [![Coverage Status](https://img.shields.io/coveralls/lukasoppermann/html5sortable/master.svg?style=flat-square)](https://coveralls.io/github/lukasoppermann/html5sortable) [![Known Vulnerabilities](https://snyk.io/test/github/lukasoppermann/html5sortable/badge.svg?style=flat-square)](https://snyk.io/test/github/lukasoppermann/html5sortable)  [![NPM](https://img.shields.io/npm/v/html5sortable.svg?style=flat-square)](https://www.npmjs.com/package/html5sortable) [![npm](https://img.shields.io/npm/dt/html5sortable.svg?style=flat-square)](https://www.npmjs.com/package/html5sortable) [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat-square)](CONTRIBUTING.md) [![Code of Conduct](https://img.shields.io/badge/code%20of-conduct-ff69b4.svg?style=flat-square)](CODE_OF_CONDUCT.md)
+[![Build Status](https://github.com/lukasoppermann/html5sortable/workflows/Build%20and%20test/badge.svg)](https://github.com/lukasoppermann/html5sortable/actions) [![Software License](https://img.shields.io/badge/license-MIT-brightgreen.svg?style=flat-square)](LICENSE.md) [![Coverage Status](https://img.shields.io/coveralls/lukasoppermann/html5sortable/master.svg?style=flat-square)](https://coveralls.io/github/lukasoppermann/html5sortable) [![Known Vulnerabilities](https://snyk.io/test/github/lukasoppermann/html5sortable/badge.svg?style=flat-square)](https://snyk.io/test/github/lukasoppermann/html5sortable)  [![NPM](https://img.shields.io/npm/v/html5sortable.svg?style=flat-square)](https://www.npmjs.com/package/html5sortable) [![npm](https://img.shields.io/npm/dt/html5sortable.svg?style=flat-square)](https://www.npmjs.com/package/html5sortable) [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat-square)](CONTRIBUTING.md) [![Code of Conduct](https://img.shields.io/badge/code%20of-conduct-ff69b4.svg?style=flat-square)](CODE_OF_CONDUCT.md)
 
 > **Lightweight vanillajs micro-library for creating sortable lists and grids using native HTML5 drag and drop API.**
 

.travis.yml

@@ -32,7 +32,6 @@
     "@types/jest": "^26.0.3",
     "@typescript-eslint/eslint-plugin": "^4.4.0",
     "@typescript-eslint/parser": "^4.4.0",
-    "coveralls": "^3.1.0",
     "eslint": "^7.4.0",
     "jest": "^24.9.0",
     "rollup": "^2.18.2",
@@ -69,6 +68,7 @@
     }
   },
   "standard": {
+    "globals": ["HTMLElement", "configuration", "Event", "sortable", "offsetObject", "serializedItem", "Store"],
     "parser": "@typescript-eslint/parser",
     "plugins": [
       "@typescript-eslint"
@@ -81,8 +81,8 @@
     "build": "rollup -c && cp $npm_package_main docs/html5sortable.js",
     "release": "sh make-release.sh",
     "standard": "standard 'src/*.ts' '__tests__/*.ts' | snazzy",
-    "travis": "npm run cover && npm run standard",
-    "cover": "jest --colors --coverage --coverageReporters=text-lcov | coveralls",
+    "github-build": "npm run cover && npm run standard",
+    "cover": "jest --coverage",
     "postversion": "npm run release",
     "tsc": "tsc ./src/*.ts --pretty --diagnostics --noEmit --watch"
   }

README.md

@@ -1,5 +1,7 @@
 /* eslint-env browser */
+/* eslint-disable no-use-before-define */
 export const stores: Map<HTMLElement, Store> = new Map()
+/* eslint-enable no-use-before-define */
 /**
  * Stores data & configurations per Sortable
  * @param {Object} config