Test vibe.d initial commit.

- Now ready for tutorial section: "Incremental updates"

views/hello.dt

@@ -0,0 +1,6 @@
+doctype html
+html
+  head
+    title HELLO
+  body
+    h1 HELLO

views/index.dt

@@ -0,0 +1,15 @@
+doctype html
+html
+  head
+    title Welcome to Webchat
+  body
+    h1 Welcome to Webchat
+    p Choose a chatroom:
+    form(action="/room", method="GET")
+      p
+        label(for="room") Chat room:
+        input#room(name="room", type="text", autofocus="true")
+      p
+        label(for="nick") Your Name:
+        input#nick(name="nick", type="text")
+      button(type="submit") Go

views/room.dt

@@ -0,0 +1,18 @@
+doctype html
+html
+    head
+        title #{room} - Webchat
+        style.
+            textarea, input { width: 100%; }
+            textarea { resize: vertical; }
+    body
+        h1 Room '#{room}'
+        textarea#history(rows=20, readonly=true)
+            - foreach (m; messages)
+                |= m
+
+        form(action="room", method="POST")
+            input(type="hidden", name="room", value=room)
+            input(type="hidden", name="nick", value=nick)
+            input#inputLine(type="text", name="message", autofocus=true)
+