replace some of the status.im theme with general config options

config.sample.json

@@ -1,6 +1,10 @@
 {
     "default_hs_url": "https://matrix.org",
     "default_is_url": "https://vector.im",
+    "disable_custom_urls": false,
+    "disable_guests": false,
+    "disable_login_language_selector": false,
+    "disable_3pid_login": false,
     "brand": "Riot",
     "integrations_ui_url": "https://scalar.vector.im/",
     "integrations_rest_url": "https://scalar.vector.im/api",

src/components/views/login/VectorLoginFooter.js

@@ -27,6 +27,7 @@ module.exports = React.createClass({
     },
 
     render: function() {
+        // FIXME: replace this with a proper Status skin
         if (UserSettingsStore.getTheme() === 'status') return <div/>;
         
         return (

src/vector/index.js

@@ -332,7 +332,7 @@ async function loadApp() {
                 config={configJson}
                 realQueryParams={params}
                 startingFragmentQueryParams={fragparts.params}
-                enableGuest={true}
+                enableGuest={!configJson.disable_guests}
                 onTokenLoginCompleted={onTokenLoginCompleted}
                 initialScreenAfterLogin={getScreenFromLocation(window.location)}
                 defaultDeviceDisplayName={platform.getDefaultDeviceDisplayName()}