Wait for result of Transactions in MD-SAL Adapter

This patch waits for the result of a transaction to return before
executions continues. Additionally, logs have been cleaned up

Change-Id: I3602bd3784af1b3c290efc58a7d6018687441fc3
Signed-off-by: Dave Tucker <djt@redhat.com>
Merge "Wait for result of Transactions in MD-SAL Adapter"