Add limited support for completions, add .editorconfig and reformat.

.github/workflows/maven.yml

@@ -4,21 +4,21 @@
 name: Java CI with Maven
 
 on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
+    push:
+        branches: [ master ]
+    pull_request:
+        branches: [ master ]
 
 jobs:
-  build:
+    build:
 
-    runs-on: ubuntu-latest
+        runs-on: ubuntu-latest
 
-    steps:
-    - uses: actions/checkout@v2
-    - name: Set up JDK 1.8
-      uses: actions/setup-java@v1
-      with:
-        java-version: 1.8
-    - name: Build with Maven
-      run: mvn -B package --file pom.xml
+        steps:
+            -   uses: actions/checkout@v2
+            -   name: Set up JDK 1.8
+                uses: actions/setup-java@v1
+                with:
+                    java-version: 1.8
+            -   name: Build with Maven
+                run: mvn -B package --file pom.xml