Pygnmi

- IPv6 support: `Issue 166 <https://github.com/akarneliuk/pygnmi/pull/166>`_.
- Double support: `Issue 165 <https://github.com/akarneliuk/pygnmi/pull/165>`_.

- Number of minor bug fixes and improvements.
- Adding support of `prefix` to `pygnmicli`.
- `Adding error propagation from child thread to main thread <https://github.com/akarneliuk/pygnmi/pull/142>`
- `Changes to u_val <https://github.com/akarneliuk/pygnmi/pull/144>`
- `Adding Master Arbitration support for Set <https://github.com/akarneliuk/pygnmi/pull/146>`
- `Adding bytes_val and leaflist_val with string_val parsing <https://github.com/akarneliuk/pygnmi/pull/151>`

Minor improvements and upgrades

- Fixed operation of `no_qos_marking` flag for `pygnmicli`.

- Previous release introduced break for telemetry in `Juniper` due to inconsistency of communicated encoudings in `Capabilities()` and what is really supported in `Subscribe()`.

- Automatic detection of supported encoding and using it where applicable (e.g., in `subscribe2` method).
- Possibility to remove `qos` from `Subscribe` for platforms, which doesn't support it (e.g., `Juniper`).