Changing the node in testbed_sanity_nodec21_noMultiIntf_github_havana.py and testbed_sanity_nodec21_noMultiIntf_icehouse.py

Change-Id: If08360724cddf8548b80f58437eced7b24c3adb2
Export some basic testbed details as shell env variables

Change-Id: I76161972a630bd5d378d296a8840e278d26260e5
Adding a new single-node testbed with nodec27

Change-Id: Ia7461a70f19a6e4718b9684da0c5adb41861a953
Merge "Changing the node in testbed_sanity_nodec21_noMultiIntf_github_havana.py and testbed_sanity_nodec21_noMultiIntf_icehouse.py"
Merge "Adding a new single-node testbed with nodec27"
Merge "Export some basic testbed details as shell env variables"
Merge remote-tracking branch 'upstream/master'