bump 2018.7.0-milestone1

Change-Id: I5e6017ffef491e3ee44cd39a34849cb7f60359a5
diff --git a/classes/cluster/mcp-offline/infra/mirror b/classes/cluster/mcp-offline/infra/mirror
index 372ba2f..e364c1c 160000
--- a/classes/cluster/mcp-offline/infra/mirror
+++ b/classes/cluster/mcp-offline/infra/mirror
@@ -1 +1 @@
-Subproject commit 372ba2f53bd9b905bf5b7d8992e19b842ede0bfc
+Subproject commit e364c1c4c2684dfc1e1f7020afa0e9591244a2b5