Update ESLint and enable the lines-between-class-members rule

This rule will help aid readability in `class`es, please see https://eslint.org/docs/rules/lines-between-class-members.

.eslintrc

@@ -119,6 +119,7 @@
     "key-spacing": ["error", { "beforeColon": false, "afterColon": true, "mode": "strict", }],
     "keyword-spacing": ["error", { "before": true, "after": true, }],
     "linebreak-style": ["error", "unix"],
+    "lines-between-class-members": ["error", "always"],
     "max-len": ["error", 80],
     "new-cap": ["error", { "newIsCap": true, "capIsNew": false, }],
     "new-parens": "error",

package.json

@@ -9,8 +9,8 @@
     "babel-preset-env": "^1.6.0",
     "core-js": "^2.5.1",
     "escodegen": "^1.9.0",
-    "eslint": "^4.8.0",
-    "eslint-plugin-mozilla": "^0.4.4",
+    "eslint": "^4.10.0",
+    "eslint-plugin-mozilla": "^0.4.5",
     "gulp": "^3.9.1",
     "gulp-rename": "^1.2.2",
     "gulp-replace": "^0.6.1",

web/pdf_link_service.js

@@ -423,24 +423,29 @@ class SimpleLinkService {
   get page() {
     return 0;
   }
+
   /**
    * @param {number} value
    */
   set page(value) {}
+
   /**
    * @returns {number}
    */
   get rotation() {
     return 0;
   }
+
   /**
    * @param {number} value
    */
   set rotation(value) {}
+
   /**
    * @param dest - The PDF destination object.
    */
   navigateTo(dest) {}
+
   /**
    * @param dest - The PDF destination object.
    * @returns {string} The hyperlink to the PDF object.
@@ -448,6 +453,7 @@ class SimpleLinkService {
   getDestinationHash(dest) {
     return '#';
   }
+
   /**
    * @param hash - The PDF parameters/hash.
    * @returns {string} The hyperlink to the PDF object.
@@ -455,18 +461,22 @@ class SimpleLinkService {
   getAnchorUrl(hash) {
     return '#';
   }
+
   /**
    * @param {string} hash
    */
   setHash(hash) {}
+
   /**
    * @param {string} action
    */
   executeNamedAction(action) {}
+
   /**
    * @param {Object} params
    */
   onFileAttachmentAnnotation({ id, filename, content, }) {}
+
   /**
    * @param {number} pageNum - page number.
    * @param {Object} pageRef - reference to the page.