Bump javamelody to 1.58

New version fixed some bugs and added some new features, including new
graphs: [1]

* % System CPU
* Used buffered memory

[1] https://github.com/javamelody/javamelody/wiki/ReleaseNotes#1580

Change-Id: I5a10ca28d79428a4cb5b3eeec1b72f0dff2ca8c1
diff --git a/BUCK b/BUCK
index 0cfa8ca..8eded1a 100644
--- a/BUCK
+++ b/BUCK
@@ -69,8 +69,8 @@
 
 maven_jar(
   name = 'javamelody-lib',
-  id = 'net.bull.javamelody:javamelody-core:1.56.0',
-  sha1 = '0ae378effb19d2ad2db6f352ed91548f338b7c46',
+  id = 'net.bull.javamelody:javamelody-core:1.58.0',
+  sha1 = '5f1b3c3c1d037e4d62605b9ca6e15da390f8bc6a',
   license = 'DO_NOT_DISTRIBUTE',
 )