Update git submodules

* Update docs/submodules/dmaap/buscontroller.git from branch 'master'
  to 507672403b6afe9e340585ab0757af2300c0435b
  - include SNAPSHOT
    
    Issue-ID: DMAAP-1363
    Signed-off-by: dglFromAtt <dgl@research.att.com>
    Change-Id: I572b86f133609dc0b37fb78dcad7cb14f0e430bb
    Signed-off-by: dglFromAtt <dgl@research.att.com>
    
diff --git a/docs/submodules/dmaap/buscontroller.git b/docs/submodules/dmaap/buscontroller.git
index 31b1a1e..5076724 160000
--- a/docs/submodules/dmaap/buscontroller.git
+++ b/docs/submodules/dmaap/buscontroller.git
@@ -1 +1 @@
-Subproject commit 31b1a1e1af3dc575bee655fede363125ed8107a1
+Subproject commit 507672403b6afe9e340585ab0757af2300c0435b