Added max-len rule (fixes #4)

configs/generic.js

@@ -100,6 +100,19 @@ const generic = {
       'error',
       'unix',
     ],
+    'max-len': [
+      'warn',
+      {
+        code: 100,
+        comments: 80,
+        ignoreComments: false,
+        ignoreTrailingComments: false,
+        ignoreUrls: true,
+        ignoreStrings: true,
+        ignoreTemplateLiterals: false,
+        ignoreRegExpLiterals: true,
+      },
+    ],
     'no-unused-vars': 'warn',
     'no-alert': 'error',
     'no-caller': 'error',