Updated git submodules

Project: so master 6ffc97aad02be00b5c68c055f16df8ab600b9ea9

fixed incorrect groovy method call

Added missing pers to isEmpty and also added relationship present check
to prevent null pointer.

Change-Id: I7f184c428694e55b75f255d517a53aac7be82aab
Issue-ID: SO-924
Signed-off-by: Benjamin, Max (mb388a) <mb388a@us.att.com>


diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index eb94991..6ffc97a 160000
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit eb94991c543a1d9cf3c9b6c4dfca921dedf48da5
+Subproject commit 6ffc97aad02be00b5c68c055f16df8ab600b9ea9