Return errno code in case of error
Do not fail in case of EADDRINUSE, we already initialized the socket here
Fix if condition
Deinitialize connection manager socket in connection_manager_deinit()
Only log here if we do not have a -EAGAIN or -EWOULDBLOCK
Add listen() call to ws_socket_init()
Merge pull request #582 from matthiasbeyer/fix-connection_manager

Fix connection manager