Enhance/fix rest server#2

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gustavoja wants to merge 3 commits intofluendo:masterfrom gustavoja:Enhance-Fix_Rest_Server

+67-32

Commits on Aug 18, 2017

Check if port is being used by the system before start to avoid exceptions
gustavoja
committed
Fix: when receiving a POST request to create an item the server failed to return the newly created object.
gustavoja
committed
Fix: A call to UPDATE throwed a duplicated route exception
gustavoja
committed