added sc_comm_singleton to coordinate interaction with clients (e.g. web

browser)

html/index.html

@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Hello, world</title>
+    <script src='lib/jquery.min.js'></script>
+    <script src='app.js'></script>
+  </head>
+  <body>
+	<input id="count" type="button" value="..."></input>
+	<input id="close" type="button" value="Close"></input>
+	<input id="die" type="button" value="Die"></input>
+  </body>
+</html>
+