Upgrade to new bnsd (0.10.0)

[ethanfrey]

Basically, regenerating bns codecs from the new protobuf definitions and making needed changes.

Update: bnsd 0.10.0 docker image is available

The binary format is breaking, to make it forward-compatible, so this means a iov-core code will support either < 0.10.0 or >= 0.10.0, which should be made very explicit in the README. https://github.com/iov-one/weave/pull/241

There are some breaking changes that will affect the generated code, such as:

• Removing namecoin: https://github.com/iov-one/weave/pull/228 (this means a different prefix on queries, cash: not wllt: among other things)
• Renaming some protobuf fields: https://github.com/iov-one/weave/pull/225 (code is the same, but you will have to rename variables).
• More renamings (which may or may not change js representation): https://github.com/iov-one/weave/issues/227

[ethanfrey]

@webmaster128 as discussed, please try compiling the protobuf files from 0.10.0 soon, to see if this causes any issues (as they added optional gogoproto extensions). If there are issues, we can take a few days to find a solution upstream, so you can just use the file and work on the code.