Issue 5943 - Implement Updates Page for Adblock Plus extension

locale/en_US/updates.json

+{
+  "updates_status" : {
+    "message": "Update complete"
+  },
+  "updates_heading": {
+    "message": "Adblock Plus has been updated!"
+  },
+  "updates_subheading": {
+    "message": "What's new?"
+  },
+  "updates_optionsPageNews": {
+    "message": "Brand new Settings page - revamped and restyled with more privacy and security options - so it's easier to <a>customize Adblock Plus just like you want it</a>."
+  },
+  "updates_blockAds": {
+    "message": "The Open Source Rebel Alliance created new blocking filters that let you blast hidden ads on websites like Facebook, even if the Empire strikes back."
+  },
+  "updates_phone": {
+    "message": "But wait! What about your phone?"
+  },
+  "updates_adblockBrowser": {
+    "message": "If you are taking control on desktop, you can block ads and improve your privacy and security on mobile too. Get the <a>Adblock Browser App below</a>." 
+  }
+}