Refactor module

Update dependencies, dev-dependencies; refactor docs; refactor
code-style; remove superfluous dot-files; add note on `menuitem`
controversy.

Author: wooorm

.editorconfig

@@ -2,14 +2,8 @@ root = true
 
 [*]
 indent_style = space
-indent_size = 4
+indent_size = 2
 end_of_line = lf
 charset = utf-8
 trim_trailing_whitespace = true
 insert_final_newline = true
-
-[*.{json,remarkrc,eslintrc,sh}]
-indent_size = 2
-
-[*.md]
-trim_trailing_whitespace = false

.eslintignore

@@ -1,12 +1,11 @@
 language: node_js
 node_js:
-- '0.10'
 - '0.11'
 - '0.12'
 - '4.0'
 - '5.0'
-sudo: false
-after_script: npm install codecov.io && cat ./coverage/lcov.info | codecov
+- '6.0'
+after_success: bash <(curl -s https://codecov.io/bash)
 deploy:
   - provider: npm
     email: [email protected]
@@ -23,3 +22,4 @@ deploy:
       - "html-void-elements.min.js"
     on:
       tags: true
+      node: '6.0'

.eslintrc

@@ -10,8 +10,5 @@
 
 /* eslint-env commonjs */
 
-/*
- * Expose.
- */
-
+/* Expose. */
 module.exports = require('./index.json');

.jscs.json

@@ -31,30 +31,58 @@
     "bail": "^1.0.0",
     "browserify": "^13.0.0",
     "cheerio": "^0.20.0",
-    "eslint": "^2.0.0",
-    "esmangle": "^1.0.1",
+    "esmangle": "^1.0.0",
     "istanbul": "^0.4.0",
-    "jscs": "^2.0.0",
-    "jscs-jsdoc": "^1.0.0",
-    "remark": "^4.0.0",
-    "remark-comment-config": "^3.0.0",
-    "remark-github": "^4.0.1",
-    "remark-lint": "^3.0.0",
-    "remark-usage": "^3.0.0",
-    "remark-validate-links": "^3.0.0",
-    "tape": "^4.4.0"
+    "remark-cli": "^1.0.0",
+    "remark-comment-config": "^4.0.0",
+    "remark-github": "^5.0.0",
+    "remark-lint": "^4.0.0",
+    "remark-usage": "^4.0.0",
+    "remark-validate-links": "^4.0.0",
+    "tape": "^4.0.0",
+    "xo": "^0.16.0"
   },
   "scripts": {
     "build-md": "remark . --quiet --frail",
     "build-crawl": "node script/build.js",
     "build-bundle": "browserify index.js --bare -s htmlVoidElements > html-void-elements.js",
     "build-mangle": "esmangle html-void-elements.js > html-void-elements.min.js",
     "build": "npm run build-md && npm run build-bundle && npm run build-mangle",
-    "lint-api": "eslint .",
-    "lint-style": "jscs --reporter inline .",
-    "lint": "npm run lint-api && npm run lint-style",
+    "lint": "xo",
     "test-api": "node test.js",
     "test-coverage": "istanbul cover test.js",
     "test": "npm run build && npm run lint && npm run test-coverage"
+  },
+  "xo": {
+    "space": true,
+    "rules": {
+      "guard-for-in": [
+        0
+      ],
+      "eqeqeq": [
+        0,
+        "allow-null"
+      ],
+      "no-eq-null": [
+        0
+      ]
+    },
+    "ignores": [
+      "html-void-elements.js",
+      "html-void-elements.min.js"
+    ]
+  },
+  "remarkConfig": {
+    "output": true,
+    "plugins": [
+      "comment-config",
+      "lint",
+      "github",
+      "validate-links",
+      "usage"
+    ],
+    "settings": {
+      "bullet": "*"
+    }
   }
 }

.remarkrc

@@ -4,6 +4,9 @@ List of known void HTML elements.  Includes ancient (for example,
 `nextid` and `basefont`) and modern (for example, `img` and
 `meta`) tag-names from both W3C and WHATWG.
 
+**Note**: there’s one special case: `menuitem`.  W3C specifies it to be
+void, but WHATWG doesn’t.  I suggest using the void form.
+
 ## Installation
 
 [npm][]:

.travis.yml

@@ -42,45 +42,45 @@ var output = path.join(__dirname, '..', 'index.json');
  * @param {Function} callback - Invoked with document.
  */
 function load(url, callback) {
-    var lib = url.slice(0, HTTPS.length) === HTTPS ? https : http;
-
-    lib.get(url, function (res, err) {
-        var value = '';
-
-        if (err) {
-            return callback(err);
-        }
-
-        res
-            .setEncoding('utf8')
-            .on('data', function (buf) {
-                value += buf;
-            }).on('end', function () {
-                return callback(null, value);
-            });
-    });
+  var lib = url.slice(0, HTTPS.length) === HTTPS ? https : http;
+
+  lib.get(url, function (res, err) {
+    var value = '';
+
+    if (err) {
+      return callback(err);
+    }
+
+    res
+      .setEncoding('utf8')
+      .on('data', function (buf) {
+        value += buf;
+      }).on('end', function () {
+        return callback(null, value);
+      });
+  });
 }
 
 /*
  * Crawl W3C.
  */
 
 load(w3c, function (err, doc) {
-    if (err) {
-        bail(err);
-    }
-
-    cheerio.load(doc)('#void-elements')
-        .parent()
-        .next()
-        .find('code a')
-        .each(function () {
-            var data = this.children[0].data;
-
-            if (data && list.indexOf(data) === -1) {
-                list.push(data);
-            }
-        });
+  if (err) {
+    bail(err);
+  }
+
+  cheerio.load(doc)('#void-elements')
+    .parent()
+    .next()
+    .find('code a')
+    .each(function () {
+      var data = this.children[0].data;
+
+      if (data && list.indexOf(data) === -1) {
+        list.push(data);
+      }
+    });
 
-    fs.writeFile(output, JSON.stringify(list.sort(), 0, 2) + '\n', bail);
+  fs.writeFile(output, JSON.stringify(list.sort(), 0, 2) + '\n', bail);
 });