Merge branch 'lineup-v4' into sgratzl/fix_data_mapping

.circleci/config.yml

@@ -8,12 +8,12 @@ jobs:
       - checkout
       - restore_cache:
           keys:
-            - v2-deps-{{ checksum "package.json" }}-{{ checksum "package-lock.json" }}
-            - v2-deps-{{ checksum "package.json" }}
-            - v2-deps-
+            - v3-deps-{{ checksum "package.json" }}-{{ checksum "package-lock.json" }}
+            - v3-deps-{{ checksum "package.json" }}
+            - v3-deps-
       - run: npm ci
       - save_cache:
-          key: v2-deps-{{ checksum "package.json" }}-{{ checksum "package-lock.json" }}
+          key: v3-deps-{{ checksum "package.json" }}-{{ checksum "package-lock.json" }}
           paths:
             - ~/.npm
             - ~/.cache
@@ -52,12 +52,12 @@ jobs:
       - checkout
       - restore_cache:
           keys:
-            - v2-deps-{{ checksum "package.json" }}-{{ checksum "package-lock.json" }}
-            - v2-deps-{{ checksum "package.json" }}
-            - v2-deps-
+            - v3-deps-{{ checksum "package.json" }}-{{ checksum "package-lock.json" }}
+            - v3-deps-{{ checksum "package.json" }}
+            - v3-deps-
       - run: npm ci
       - save_cache:
-          key: v2-deps-{{ checksum "package.json" }}-{{ checksum "package-lock.json" }}
+          key: v3-deps-{{ checksum "package.json" }}-{{ checksum "package-lock.json" }}
           paths:
             - ~/.npm
             - ~/.cache

.github/ISSUE_TEMPLATE.md → .github/ISSUE_TEMPLATE/bug.md

@@ -1,16 +1,29 @@
- * Release number or git hash: 
- * Web browser version and OS: 
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: 'type: bug'
+assignees: ''
+
+---
+
+* Release number or git hash: 
+* Web browser version and OS: 
 
 ### Steps to reproduce
 
- 1. 
- 1. 
+1. 
+2. 
 
 ### Observed behavior
+<!--
  * Any unexpected output or action (or lack of expected output or action)
  * Web browser console errors (including tracebacks)
  * Server errors (relevant messages and tracebacks)
  * Static or animated images showing the UI behavior
+-->
 
 ### Expected behavior
- * 
+
+* 
+

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,8 @@
+---
+name: feature request
+about: Suggest a feature to be implemented or a component to be improved
+title: ''
+labels: 'type: feature'
+assignees: ''
+
+---

.github/ISSUE_TEMPLATE/question.md

@@ -0,0 +1,9 @@
+---
+name: question
+about: Ask question about the library (usage, features,...)
+title: ''
+labels: 'type: question'
+assignees: ''
+
+---
+

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,10 +1,11 @@
-closes <list issues here>
+Closes <list issues here>
 
-**prerequisites**: 
- * [ ] branch is up-to-date with the branch to be merged with, i.e. develop
- * [ ] build is successful
- * [ ] code is cleaned up and formatted 
- * [ ] tested with Firefox 52, Firefox 57+, Chrome 64+, MS Edge 16+
+**Prerequisites**:
+
+* [ ] Branch is up-to-date with the branch to be merged with, i.e. develop
+* [ ] Build is successful
+* [ ] Code is cleaned up and formatted 
+* [ ] Tested with Firefox ESR, latest Firefox, latest Chrome, Edge 18
 
 
 ### Summary

.gitpod.yml

@@ -0,0 +1,3 @@
+tasks:
+  - init: npm install
+    command: npm run start

README.md

@@ -649,6 +649,12 @@ LineUp.js depends on
 Development Environment
 -----------------------
 
+Try the Gitpod online IDE and start coding instantly in your browser.
+
+[![Gitpod Ready-to-Code](https://img.shields.io/badge/Gitpod-Ready--to--Code-blue?logo=gitpod)](https://gitpod.io/#https://github.com/lineupjs/lineupjs)
+
+Otherwise follow the steps to setup a local development environment.
+
 **Installation**
 
 ```bash

package.json

@@ -36,10 +36,11 @@
     "*.css"
   ],
   "browserslist": [
-    "Firefox >= 57",
     "Firefox ESR",
-    "Edge >= 16",
-    "Chrome >= 64"
+    "last 2 Firefox versions",
+    "last 2 Chrome versions",
+    "last 2 Edge versions",
+    "Edge 18"
   ],
   "files": [
     "build",