Update info module and make updater use the new downloader module

lib/prefs.js

Index: lib/prefs.js
===================================================================
--- a/lib/prefs.js
+++ b/lib/prefs.js
@@ -28,19 +28,22 @@ let defaults = {
   data_directory: "",
   savestats: false,
   privateBrowsing: false,
   subscriptions_fallbackerrors: 5,
   subscriptions_fallbackurl: "https://adblockplus.org/getSubscription?version=%VERSION%&url=%SUBSCRIPTION%&downloadURL=%URL%&error=%ERROR%&channelStatus=%CHANNELSTATUS%&responseStatus=%RESPONSESTATUS%",
   subscriptions_autoupdate: true,
   subscriptions_exceptionsurl: "https://easylist-downloads.adblockplus.org/exceptionrules.txt",
   documentation_link: "https://adblockplus.org/redirect?link=%LINK%&lang=%LANG%",
-  update_url_release: "https://update.adblockplus.org/%NAME%/update.json?id=%ID%&version=%VERSION%&app=%APP%&type=%TYPE%",
-  update_url_devbuild: "https://adblockplus.org/devbuilds/%NAME%/update.json?id=%ID%&version=%VERSION%&app=%APP%&type=%TYPE%",
-  next_update_check: 0
+  update_url_release: "https://update.adblockplus.org/%NAME%/update.json?type=%TYPE%",
+  update_url_devbuild: "https://adblockplus.org/devbuilds/%NAME%/update.json?type=%TYPE%",
+  update_last_check: 0,
+  update_last_error: 0,
+  update_soft_expiration: 0,
+  update_hard_expiration: 0
 };
 
 let values = Object.create(defaults);
 let path = _fileSystem.resolve("prefs.json");
 let listeners = [];
 let isDirty = false;
 let isSaving = false;