HTRACE-80 Add new dependencies to LICENSE

diff --git a/LICENSE.txt b/LICENSE.txt
index a2ba0e6..21eb9ce 100644
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -226,3 +226,20 @@
 godep, a build dependency is Copyright © 2013 Keith Rarick
 and portions Copyright (c) 2012 The Go Authors. Its a BSD
+underscore, a javascript library of functional programming helpers, is
+(c) 2009-2014 Jeremy Ashkenas, DocumentCloud and Investigative Reporters
+& Editors and an MIT license:
+jquery, a javascript library, is Copyright jQuery Foundation and other
+contributors, The software consists of
+voluntary contributions made by many individuals. For exact
+contribution history, see the revision history
+available at
+It is MIT licensed:
+backbone, is a javascript library, that is Copyright (c) 2010-2014
+Jeremy Ashkenas, DocumentCloud. It is MIT licensed: