bug: cannot use multiaddr with 127.0.0.1 to dial

[weboko]

This is a bug report/feature request/support request/change request

Problem

If /dns4/127.0.0.1/tcp/8000/ws/p2p/16Uiu2HAkxcq84cB1gD1MH5XDQNm1vakvUzwoEhmLFtywF7YF3Hvm is used to dial - then error is thrown from websocket transport here

Works just fine if ``/dns4/localhost/tcp/8000/ws/p2p/16Uiu2HAkxcq84cB1gD1MH5XDQNm1vakvUzwoEhmLFtywF7YF3Hvm` is used.

Proposed Solutions

Since nwaku generates multiaddr with IP in it - we should be able to dial it without error.
Most straightforward solution can be to check for 127.0.0.1 and replace with localhost.
But we also need to check why this throw actually happens as there might be unintended consequences.

[weboko]

@vpavlin is it still an issue?