Docs: Updating page title.

docs/index.html

@@ -84,7 +84,7 @@
 
 		<script src="list.js"></script>
 		<script>
-			var REVISION = '51dev';
+			var REVISION = '50';
 
 			var panel = document.getElementById( 'panel' );
 			var viewer = document.getElementById( 'viewer' );
@@ -117,6 +117,8 @@
 
 				var path = pages[ name ];
 
+				window.document.title = 'three.js - documentation - ' + name;
+
 				window.location.hash = name;
 				viewer.src = 'api/' + path + '.html';