Update git submodules

* Update docs/submodules/appc.git from branch 'master'
  to 595c26c17a55c3e173756dc99a94ea8c8c9c5608
  - Test coverage in lockmanager.sql.pessimistic
    
    Increased package coverage from 52% to 98%
    
    Issue-ID: APPC-1400
    Change-Id: Iabce54c1004f4c5f1729d11b2ae40003d202625e
    Signed-off-by: Joss Armstrong <joss.armstrong@ericsson.com>
    
diff --git a/docs/submodules/appc.git b/docs/submodules/appc.git
index cc99c17..595c26c 160000
--- a/docs/submodules/appc.git
+++ b/docs/submodules/appc.git
@@ -1 +1 @@
-Subproject commit cc99c1785390c6ca9f40bb0d6d2b42ee55f38941
+Subproject commit 595c26c17a55c3e173756dc99a94ea8c8c9c5608