Introduce SALT_VERSION var

As we plan to move to salt 2017.7 and at the same time
we need to check 2016.3 as well (and upgrdae path), introduce
new var SALT_VERSION with default value 2016.3

Also update repo path to salt from mirror mirantis and clened up
commented hacks

Reelated: PROD-19373

Change-Id: I3c327aa4b6369750f5bdabe1b96cb52ab5770f03
diff --git a/tcp_tests/templates/cookied-bm-mcp-dvr-vxlan/salt.yaml b/tcp_tests/templates/cookied-bm-mcp-dvr-vxlan/salt.yaml
index dd6a8f6..812fd9a 100644
--- a/tcp_tests/templates/cookied-bm-mcp-dvr-vxlan/salt.yaml
+++ b/tcp_tests/templates/cookied-bm-mcp-dvr-vxlan/salt.yaml
@@ -130,3 +130,7 @@
   skip_fail: false
 
 {{ SHARED.MACRO_BOOTSTRAP_ALL_MINIONS() }}
+
+{{SHARED.MACRO_CHECK_SALT_VERSION_SERVICES_ON_CFG()}}
+
+{{SHARED.MACRO_CHECK_SALT_VERSION_ON_NODES()}}