Update git submodules

* Update ChronoSync from branch 'master'
  to e19f3f6b5ac38f26e34c14c4152ac2fb60decc90
  - Prepare release 0.5.2
    
    Change-Id: I32adf57b09e27107b87f293bb785d6f67db4b558
    
diff --git a/ChronoSync b/ChronoSync
index 1d1092d..e19f3f6 160000
--- a/ChronoSync
+++ b/ChronoSync
@@ -1 +1 @@
-Subproject commit 1d1092d3560a94a953cbde9874a0738c006a693b
+Subproject commit e19f3f6b5ac38f26e34c14c4152ac2fb60decc90