Use keyserver.ubuntu.com for manual lookups in the app

src/js/app-config.js

@@ -13,7 +13,7 @@ module.exports = appCfg;
  */
 appCfg.config = {
     cloudUrl: 'https://keys.whiteout.io',
-    hkpUrl: 'https://pgp.mit.edu',
+    hkpUrl: 'http://keyserver.ubuntu.com',
     privkeyServerUrl: 'https://keychain.whiteout.io',
     adminUrl: 'https://admin-node.whiteout.io',
     settingsUrl: 'https://settings.whiteout.io/autodiscovery/',

src/js/controller/app/publickey-import.js

@@ -20,7 +20,7 @@ var PublickeyImportCtrl = function($scope, $q, keychain, pgp, hkp, dialog, appCo
     // scope variables
     //
 
-    $scope.hkpUrl = appConfig.config.hkpUrl.replace('https://', '');
+    $scope.hkpUrl = appConfig.config.hkpUrl.replace(/http[s]?:\/\//, '');
 
     //
     // scope functions