Updated git submodules

Project: appc master c5281dd38d7f1989bf8750c6072192cdbc46031d

ChefApiClient JUnits

Add(fix) JUnits for ChefApiClient + refactor.
Junits work on mocked HttpClient instead of attempting to make real calls.
All ChefApiClient methods are now tested.
Improve readability and refactored the ChefApiClient flow (simplified).
Heavily improved SRP in both ChefApiClient and Api request creation.

Change-Id: I997490bf269e7d78b741baf7f8d5d7bf64f6b99a
Issue-ID: APPC-437
Signed-off-by: Michal Kabaj <michal.kabaj@nokia.com>

diff --git a/docs/submodules/appc.git b/docs/submodules/appc.git
index 39b6b13..c5281dd 160000 (submodule)
--- a/docs/submodules/appc.git
+++ b/docs/submodules/appc.git
@@ -1 +1 @@
-Subproject commit 39b6b136b115e4ee15a599546b23cd9a68f7b673
+Subproject commit c5281dd38d7f1989bf8750c6072192cdbc46031d