Resync usecase.git to head of master

Resync recently added repos to head of master
Add branch and ignore properties to .gitmodules

Change-Id: I27bcd2062f27242dde140b43e47e53c4ef8af490
Issue-ID: VNFRQTS-154
Signed-off-by: Rich Bennett <rb2745@att.com>
diff --git a/.gitmodules b/.gitmodules
index 6ba62e1..28ad236 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -306,14 +306,20 @@
 [submodule "docs/submodules/music/distributed-kv-store.git"]
 	path = docs/submodules/music/distributed-kv-store.git
 	url = ../music/distributed-kv-store
+	branch = .
+	ignore = dirty
 [submodule "docs/submodules/vnfrqts/testcases.git"]
 	path = docs/submodules/vnfrqts/testcases.git
 	url = ../vnfrqts/testcases
+	branch = .
+	ignore = dirty
 [submodule "docs/submodules/vnfrqts/usecases.git"]
 	path = docs/submodules/vnfrqts/usecases.git
 	url = ../vnfrqts/usecases
+	branch = .
+	ignore = dirty
 [submodule "docs/submodules/integration/devtool.git"]
 	path = docs/submodules/integration/devtool.git
-	url = ../integration/devtool/
+	url = ../integration/devtool
 	branch = .
 	ignore = dirty