Nmstate

New Features
- Support reapply configuration without link down when possible.
- Relicensed to LGPL 2.1+.
- Allow editing existing interface without specifying the type property in the
desired state.

Bug Fixes
- Allow adding a port to the Linux bridge by specifying only its name.
- Support IPv6 stack disable.
- Allow enabling IPv6 with empty address.
- Recover from an abnormal failure when libnmstate is re-used in a process.
- DNS: Preserve DNS config with empty state.
- Fix random failure on showing interface as done when creating bond/linux
bridge
- Do refresh in libnm on each call of show().
- Allow removing slaves from parents while keeping their interfaces up.
- Do not remove slaves that are mentioned with state UP.
- Support slaves swap between masters.
- API: Expose IP constants through libnmstate.schema.
- PY3: Fix deprecation of array.tostring().
- Fix IPv4 enabled criteria: When DHCP is enabled, it implies IPv4 is enabled.

New Features
- Support editing DNS client configuration.
- Support editing IP routes.
- API: Promote the public API to libnmstate level:
* libnmstate.show()
* libnmstate.apply()
* libnmstate.commit()
* libnmstate.rollback()
* libnmstate.error
* libnmstate.schema

Bug Fixes
- Optimize new and existing interface processing when applying state.

New Features
- Support manual transaction control.
- Support querying DNS client configuration.
- Support querying IP routes.
- Support changing MAC address.

Bug Fixes
- nmstatectl: Handle state editing conflict.
- apply: Handle commit/rollback errors.
- nm.checkpoint: Handle DBusExceptions.
- Fix build on old setuptools.
- nm: Exit with a human readable error when missing libnm introspection.
- state: Rebuild the ifaces state on each call to the state getter.
- metadata: New created iface entry should include a name.
- state: Relocate the remove func of absent/down ifaces into State.
- apply: Pass the State object to the metadata generator.

New Features
- Support Open vSwitch internal interface.
- Support ignoring DNS/routes/gateways from DHCP/Autoconf.

Bug Fixes
- nm device: Include safety checks when deleting a device.
- nm: Delete explicitly OVS type interfaces.
- show: Do not include the mtu entry for ovs-bridge.
- show: Do not include ipv4/6 entries for ovs-bridge.
- Unify the Nmstate exceptions to error.py.
- verify: Sort bridge ports by name.
- nm device: Delete connection profiles with no device.
- nm ovs: Fix slave interface detection.
- nmclient: Explicitly create a new client object only in show.
- apply: Remove unuseful leftover code.
- Add option for ignoring auto DNS and routes.
- nmstatectl: Allow to set multiple states.

New Features
- Support Linux Bridge.

Bug Fixes
- nm, device: Retry if activation fails in specific cases.
- nm, nmclient: Allow mainloop to run the last action again.
- apply: Fix OVS proxy port handling in the edit step.
- nm, connection: Enable autoconnect by default.
- nm, device: Skip activation of an already activating device.
- nm, device: Fix ActiveConnection.is_activating.
- nm, device: Activate based on the device or connection object.
- nmstatectl: Output yaml by default.
- nmstatectl: Remove extra newline from yaml output.
- show: Sort interface state.
- nm.bridge: Set only specified port options.
- nm: Do not raise explcitly within the checkpoint context.
- nm: Reduce noise when logging actions execution.

New Features
- Support IPv4/IPv6 DHCP.

Bug Fixes
- NM/device: Handle activation failures for connections.
- apply: Ignore `down` state (for virt iface) in verification step.
- device: use per-action cancellable for activate_connection_async().
- mainloop: support multiple cancellables.
- Don't copy existing config when disabling IPv4/v6.