Update ONOS version to 1.6.0-SNAPSHOT

Change-Id: I0a20d57673fc428384267ff49c632edb66c58024
diff --git a/apps/aaa b/apps/aaa
index 5f97951..e016b81 160000
--- a/apps/aaa
+++ b/apps/aaa
@@ -1 +1 @@
-Subproject commit 5f979512be013d55ad733400722cf82ae110b696
+Subproject commit e016b810526f61a06ca928cdc5153d94c6d1c717
diff --git a/apps/config b/apps/config
index e5c98de..5b040c7 160000
--- a/apps/config
+++ b/apps/config
@@ -1 +1 @@
-Subproject commit e5c98ded48f5565add921a275fd5eabbb1251aa5
+Subproject commit 5b040c7c6bc19091900ae0ba2caf5d82e82bdb92
diff --git a/apps/igmp b/apps/igmp
index eb05ca0..b93e73f 160000
--- a/apps/igmp
+++ b/apps/igmp
@@ -1 +1 @@
-Subproject commit eb05ca0713b249c0f1af9d5b37b527fe9df6b81c
+Subproject commit b93e73f519a3c46d94f98ea35a375456ab0d3ac3
diff --git a/apps/mcast b/apps/mcast
index 4ddffc5..e82ba5b 160000
--- a/apps/mcast
+++ b/apps/mcast
@@ -1 +1 @@
-Subproject commit 4ddffc53e13af79385664536158012c3eea73e8b
+Subproject commit e82ba5b2cc1b2478b86f88e752bb3c37932796bf
diff --git a/apps/olt b/apps/olt
index dbdba84..3396685 160000
--- a/apps/olt
+++ b/apps/olt
@@ -1 +1 @@
-Subproject commit dbdba84c7512005769b8662283a3680db4028247
+Subproject commit 3396685c2f5e62fceb8a6a3dddf99031388d4e11
diff --git a/apps/vtn b/apps/vtn
index 0592c3d..c71c5ff 160000
--- a/apps/vtn
+++ b/apps/vtn
@@ -1 +1 @@
-Subproject commit 0592c3dabb682ae9113b4417125dbd3673287fe2
+Subproject commit c71c5ffbdabe53f76f86c4197420bd2a0591a72b