Added the means to stop Flow push and changed the semantics on the OutFlow to start() and stop() for starting and stopping Flow data streaming respectively.
Added the means to stop Flow push and changed the semantics on the OutFlow to start() and stop() for starting and stopping Flow data streaming respectively.

anrl/JAM,anrl/JAM,anrl/JAM,anrl/JAM,anrl/JAM,anrl/JAM