When api-server starts up, on connecting to rabbitmq, delete old-q which might have accumulated already handled updates (in resync step).
On temporary disconnnect + re-establish queue will remain and any updates that happened in the window will be processed.

Change-Id: Ic398486f5fba8a3b397223184d2fc14ba79c57ef
Merge "When api-server starts up, on connecting to rabbitmq, delete old-q which might have accumulated already handled updates (in resync step). On temporary disconnnect + re-establish queue will remain and any updates that happened in the window will be processed."