`DockerIpfs.Connect()` choose address dynamically.
`DockerIpfs.Connect()` choose address dynamically.

Search for valid connect address before attempting connection. Return error if
no valid connect address is found.

License: MIT
Signed-off-by: David Grisham <002ac86fccf59f1b61993ff1f9bbef83457c10ec@mines.edu>

whyrusleeping/iptb,whyrusleeping/iptb