Update linter settings

.eslintignore

@@ -0,0 +1,5 @@
+
+docs/**
+node_modules/**
+coverage/**
+public/**

.eslintrc.json

@@ -8,7 +8,9 @@
     "jest": true
   },
   "parserOptions": {
-    "ecmaVersion": 8
+    "ecmaVersion": 2018,
+    "noInlineConfig": true,
+    "reportUnusedDisableDirectives": true
   },
   "rules": {
     "arrow-body-style": "error",
@@ -27,7 +29,7 @@
     "max-depth": ["error", 3],
     "max-len": ["warn", { "code": 120, "tabWidth": 4 }],
     "max-lines": ["warn", {"max": 150, "skipBlankLines": true, "skipComments": true}],
-    "max-lines-per-function": ["error", 20],
+    "max-lines-per-function": ["warn", {"max": 20, "skipBlankLines": true, "skipComments": true}],
     "max-nested-callbacks": ["error", 4],
     "max-params": ["error", 5],
     "max-statements": ["error", 20],
@@ -60,7 +62,7 @@
     "space-before-function-paren": ["error", "never"],
     "strict": ["error", "global"],
     "yoda": "error"
-	},
+  },
 	"overrides": [{
 		"files": [ "*.test.js", "*.spec.js", "*.steps.js" ],
 		"rules": {