Updated git submodules

Project: appc master 975556b8704e5ea2e3e509e2e2081774d17af48e

added test cases to TimeTest.java

to increase code coverage

Issue-ID: APPC-1086
Change-Id: I204a69f765356a4ea045793b0fefb69b68a406bf
Signed-off-by: Sandeep J <sandeejh@in.ibm.com>
added test case to TestSignal.java

to increase code coverage

Issue-ID: APPC-1086
Change-Id: If908db1d5e0f45e34d4378129f41bf2908f872e2
Signed-off-by: Sandeep J <sandeejh@in.ibm.com>
Sonar Fix: ChefApiClientFactory.java

Fixed sonar issues/code-smells across this file

Issue-ID: APPC-1253
Change-Id: Id1060c34f0b99e906dba618d9ea0aebca0fc1beb
Signed-off-by: Arundathi Patil <arundpil@in.ibm.com>
Sonar Fix: ConnectionBuilder.java

Fixed sonar issues/code-smells across this file

Issue-ID: APPC-1252
Change-Id: I8f07da91c7b29012c8d4b72af8b94ee5c5a017a4
Signed-off-by: Arundathi Patil <arundpil@in.ibm.com>

diff --git a/docs/submodules/appc.git b/docs/submodules/appc.git
index c5138bc..975556b 160000 (submodule)
--- a/docs/submodules/appc.git
+++ b/docs/submodules/appc.git
@@ -1 +1 @@
-Subproject commit c5138bc635e630d9727597098e5e60d3e35930f2
+Subproject commit 975556b8704e5ea2e3e509e2e2081774d17af48e