WIP - RAC-5956 baremetal updates - DON'T MERGE ME#774

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hohene wants to merge 3 commits intoRackHD:masterfrom

hohene:RAC-5956-baremetal-updates

Commits on Sep 14, 2017

Added retries around the callback in post test to address issues we are hitting when running against quanta bare metal nodes.
hohene
committed
removed the network option to address issues being hit in bare metal nodes installations.
hohene
committed
Adding retries around callback routine to avoid timeouts during install on bare metal nodes
hohene
committed