update key and verify email notification

src/app/settings/settingsUpdateKeyController.js

@@ -0,0 +1,37 @@
+angular
+    .module('bit.settings')
+
+    .controller('settingsUpdateKeyController', function ($scope, $state, apiService, $uibModalInstance,
+        cryptoService, authService, cipherService, validationService, toastr, $analytics) {
+        $analytics.eventTrack('settingsUpdateKeyController', { category: 'Modal' });
+
+        $scope.save = function (form) {
+            var encKey = cryptoService.getEncKey();
+            if (encKey) {
+                validationService.addError(form, 'MasterPasswordHash',
+                    'You do not need to update. You are already using the new encryption key.', true);
+                return;
+            }
+
+            $scope.processing = true;
+            var mpHash = cryptoService.hashPassword($scope.masterPassword);
+            $scope.savePromise = cipherService.updateKey(mpHash, function () {
+                $uibModalInstance.dismiss('cancel');
+                authService.logOut();
+                $analytics.eventTrack('Key Updated');
+                return $state.go('frontend.login.info');
+            }).then(function () {
+                toastr.success('Please log back in. If you are using other bitwarden applications, ' +
+                    'log out and back in to those as well.', 'Key Updated', { timeOut: 10000 });
+            }, processError);
+        };
+
+        function processError() {
+            $uibModalInstance.dismiss('cancel');
+            toastr.error('Something went wrong.', 'Oh No!');
+        }
+
+        $scope.close = function () {
+            $uibModalInstance.dismiss('cancel');
+        };
+    });