2018Q4 updates

  * bump|switch .gitmodules to gerrit.mcp.mirantis.com
  * apt_mk_version => mcp_version
  * Switch to new formulas repo

Change-Id: I43da27d1a6d3972f2a919e5ee1550af9e39ce565
diff --git a/.gitmodules b/.gitmodules
index 1fb8af5..ee749db 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,6 +1,6 @@
 [submodule "classes/system"]
 	path = classes/system
-	url = https://github.com/Mirantis/reclass-system-salt-model.git
+	url = http://gerrit.mcp.mirantis.com/salt-models/reclass-system
 [submodule "classes/cluster/mcp-offline/infra/mirror"]
 	path = classes/cluster/mcp-offline/infra/mirror
-	url = https://github.com/Mirantis/mcp-local-repo-model
+	url = http://gerrit.mcp.mirantis.com/mcp/mcp-local-repo-model