Bump javamelody version to 1.60.0

This release did some improvements and fixed some issues: [1].

[1] https://github.com/javamelody/javamelody/wiki/ReleaseNotes#1600

Change-Id: Ifcf6d89cc7f0ef22fda3943fe2d8122e29af0ddd
(cherry picked from commit a2d947469b51a4c1049a9771c9ea8ba5889972a0)
diff --git a/BUCK b/BUCK
index 58d3cfb..ca22b70 100644
--- a/BUCK
+++ b/BUCK
@@ -71,8 +71,8 @@
 
 maven_jar(
   name = 'javamelody-lib',
-  id = 'net.bull.javamelody:javamelody-core:1.55.0',
-  sha1 = '65c4f7cec7f499ac312e57704d3e37f39ee940ee',
+  id = 'net.bull.javamelody:javamelody-core:1.60.0',
+  sha1 = 'd76f6013a81d0c3762da6fe69fa0f93bb7ec08b1',
   license = 'DO_NOT_DISTRIBUTE',
 )