Moved backend to a separate directory

backend/views/error.pug

@@ -0,0 +1,6 @@
+extends layout
+
+block content
+  h1= message
+  h2= error.status
+  pre #{error.stack}

backend/views/index.pug

@@ -0,0 +1,7 @@
+extends layout
+
+block content
+  h1= title
+  p Welcome to #{title}! 
+    a(href="/logout") Want so say goodbye?
+  p This name is fetched on server-side: #{email}

backend/views/layout.pug

@@ -0,0 +1,17 @@
+- const baseUrl = DefaultConfig.EXTERNAL_BASE_URL;
+doctype html
+html
+  head
+    title= title
+    link(rel='stylesheet', href=baseUrl+'/styles/style.css')
+  body
+    block content
+    script(type='text/javascript', src=baseUrl+'/js/polyfill.js')
+    script(type='text/javascript', src=baseUrl+'/js/require-2.3.6.min.js')
+    script(type='text/javascript', src=baseUrl+'/js/bundle.js')
+    script.
+      require(['src/index'], function (index) {
+        index.setConfig({EXTERNAL_BASE_URL: '#{baseUrl}'});
+      });
+    if !DefaultConfig.isProduction
+      script(type='text/javascript', src=baseUrl+'/auto-reload/client.js')