add confirmation message before deleting

index.html

@@ -141,8 +141,9 @@
               <div ng-show="!$root.wallet.publicKeyRing.isComplete()">
               <a ng-click="dowloadBackup()">Save seed backup</a>
               |
-              <a ng-click="deleteWallet()">Delete wallet</a>
               </div>
+              <a ng-really-click="deleteWallet()"
+                ng-really-message="Are you sure to delete this wallet from this computer?">Delete wallet</a>
               <button class="button primary radius right"
                 ng-click="backup()"
                 ng-show="!$root.wallet.publicKeyRing.isBackupReady()"

js/controllers/header.js

@@ -99,7 +99,6 @@ angular.module('copayApp.controllers').controller('HeaderController',
     };
     
     $scope.deleteWallet = function() {
-      alert('delete');
       var w = $rootScope.wallet;
       w.disconnect();
       walletFactory.delete(w.id, function() {