[mezzanine-organization-themes] : update

diff --git a/lib/mezzanine-organization-themes b/lib/mezzanine-organization-themes
index c89b4de4b1fab344abdf7c4cb89680f8b79675b0..849a24d518a4f8e47575441f2a366ade58ec160a 160000 (submodule)
--- a/lib/mezzanine-organization-themes
+++ b/lib/mezzanine-organization-themes
@@ -1 +1 @@
-Subproject commit c89b4de4b1fab344abdf7c4cb89680f8b79675b0
+Subproject commit 849a24d518a4f8e47575441f2a366ade58ec160a