Update git submodules

* Update docs/submodules/appc.git from branch 'master'
  to 39122feeda8a36406aa9d3beb0e05cfb0d77981c
  - Replace Lists with new ArrayList

    The Lists.newArrayList method is not being used here in a
    way that provides significant benefit over new ArrayList
    and Lists was causing a class not found exception.

    Change-Id: I61bbfc5e55cb283c10f3681a7e336ae346347d03
    Signed-off-by: Patrick Brady <patrick.brady@att.com>
    Issue-ID: APPC-1613

diff --git a/docs/submodules/appc.git b/docs/submodules/appc.git
index afad136..39122fe 160000 (submodule)
--- a/docs/submodules/appc.git
+++ b/docs/submodules/appc.git
@@ -1 +1 @@
-Subproject commit afad136327003c1a4b8f3a5708e27d96e3374d67
+Subproject commit 39122feeda8a36406aa9d3beb0e05cfb0d77981c