fix: remove deprecated APIs

thanks to @AlexBeLi, violentmonkey/violentmonkey#84

src/background/app.js

@@ -9,7 +9,7 @@ var clipboard = require('./utils/clipboard');
 var options = require('./options');
 
 var vmdb = exports.vmdb = new VMDB;
-var VM_VER = chrome.app.getDetails().version;
+var VM_VER = chrome.runtime.getManifest().version;
 
 options.hook(function (changes) {
   if ('isApplied' in changes) {

src/options/views/tab-about.js

@@ -1,6 +1,6 @@
 var cache = require('../../cache');
 var data = {
-  version: chrome.app.getDetails().version,
+  version: chrome.runtime.getManifest().version,
   language: navigator.language,
 };
 

src/popup/views/app/index.js

@@ -66,7 +66,7 @@ module.exports = {
       _.options.set('isApplied', !this.options.isApplied);
     },
     onManage: function () {
-      var url = chrome.extension.getURL(chrome.app.getDetails().options_page);
+      var url = chrome.extension.getURL(chrome.runtime.getManifest().options_page);
       chrome.tabs.query({
         currentWindow: true,
         url: url,