Add the wildcard INADDR_ANY [0.0.0.0]

Let the function find a listen port when we have applications listening on INADDR_ANY [wildcard - 0.0.0.0]. This means that the application will be heard on all local interfaces and can connect to the port on any of them.
Merge pull request #68 from afiune/patch-1

Add the wildcard INADDR_ANY [0.0.0.0]