Use webpack instead of require.js for LDAP authentication.

Removing Japanese hardcoded strings (Needs gettext loading code).

res/auth/ldap/scripts/signin/signin-controller.js

@@ -0,0 +1,36 @@
+module.exports = function SignInCtrl($scope, $http) {
+
+  $scope.error = null
+
+  $scope.submit = function () {
+    var data = {
+      username: $scope.signin.username.$modelValue
+      , password: $scope.signin.password.$modelValue
+    }
+    $scope.invalid = false
+    $http.post('/auth/api/v1/ldap', data)
+      .success(function (response) {
+        $scope.error = null
+        location.replace(response.redirect)
+      })
+      .error(function (response) {
+        switch (response.error) {
+          case 'ValidationError':
+            $scope.error = {
+              $invalid: true
+            }
+            break
+          case 'InvalidCredentialsError':
+            $scope.error = {
+              $incorrect: true
+            }
+            break
+          default:
+            $scope.error = {
+              $server: true
+            }
+            break
+        }
+      })
+  }
+}