Fix debug scripts after change to namespace.

static/debug-unity.html

@@ -73,7 +73,7 @@ var callbacks = {
   },
 };
 
-var cosmo = new cosmopolite.Client(callbacks);
+var cosmo = new Cosmopolite(callbacks);
 		</script>
 	</body>
 </html>

static/debug.html

@@ -101,7 +101,7 @@ window.addEventListener('load', function() {
     },
   };
 
-  var debug = new cosmopolite.Client(callbacks);
+  var debug = new Cosmopolite(callbacks);
 
   document.getElementById('subscribe').addEventListener('click', function() {
     debug.subscribe(subject.value, -1);