chore(ui-leaflet-layers): change preprocessor to babel

.eslintrc.json

@@ -0,0 +1,30 @@
+{
+  "parserOptions": {
+    "ecmaVersion": 6,
+    "sourceType": "script",
+    "ecmaFeatures": {
+      "jsx": true
+    }
+  },
+  "env": {
+    "browser": true,
+    "amd": true,
+    "mocha": true,
+    "jquery": true
+  },
+  "extends": "eslint:recommended",
+  "rules": {
+    "semi": 1,
+    "eqeqeq": 1,
+    "quotes": [1, "single"],
+    "indent": [1, 2, {"SwitchCase": 1}],
+    "no-trailing-spaces": 1,
+    "camelcase": 1,
+    "comma-dangle": 1,
+    "curly": 1
+  },
+  "globals": {
+    "angular": true,
+    "L": true
+  }
+}