Prevent accidental use

[svallory]

plow/src/messaging/transports/iMessageTransport.ts

Line 9 in 62c23c5

listen(topic: string, handler: (msg: any) => void): void;

The fact that the method will remove other listeners should be made clear in the method's name or via a mandatory parameter (e.g. removeOtherListeners: boolean)

In the second case, if removeOtherListeners is set to false forward call to subscribe