client tunnels bind to 0.0.0.0 rather than 127.0.0.1

[Gnos1s]

This is a security and anonymity risk. Please have them bind to 127.0.0.1. Thanks :)

[EinMByte]

The same goes for the HTTP server (web interface), SAM, BOB...

[edwtjo]

Also please make this configurable. I thought the port declarations were relative to --host..

[EinMByte]

Please test the changes in my fork:

• Addresses should be configurable now, use options like --bobaddress (see README.md).
• I might be possible to specify IPv6 addresses not (not sure about this, need to test).
• It's not possible yet to have two or more services on different addresses with the same port (will fix soon, this is now issue Multiple services on the same port #236).