Missing cancel action for authentication mixin

fixed double quotes
Added `SamlAuth` to proxies map so we can use ngrok and saml auth locally

lib/global-admin/addon/mixins/authentication.js

@@ -16,6 +16,12 @@ export default Mixin.create({
 
   actions: {
 
+    cancel() {
+      if (this.transitionToRoute) {
+        this.transitionToRoute('security.authentication');
+      }
+    },
+
     edit() {
       set(this, 'editing', true);
     },

lib/global-admin/addon/security/authentication/keycloak/template.hbs

@@ -1 +1 @@
-{{partial 'saml-config'}}
+{{partial "saml-config"}}

server/proxies/api.js

@@ -76,6 +76,7 @@ module.exports = function(app, options) {
     'Swagger': '/swaggerapi',
     'Version': '/version',
     'Apiui': '/api-ui',
+    'SamlAuth': '/v1-saml',
   }
 
   app.use('/', function(req, res, next) {