Release 3.12.0.

* `ObjectServer` should dispatch calls without destination since p2p connections typically don't have
  destinations.
* Only enable features of `nix` that we use.
* Support server-side cookie auth. We already supported client-side cookie-auth. zbus won't manage
  the cookies for you though, that's left to the bus implementation.
* Declare `ConnectionBuilder` as `must_use`. Instead of every builder method of it individually.
* Avoid a few string allocations in handshake code.
* Don't ignore errors from SID conversion to string.
* Add missing cfg on an import. Otherwise we get a warning when building for non-unix.
* Dependencies changed:
  * Home directory determination now split into a separate crate: `xdg-home`.
  * Drop `lazy_static`.
  * Drop now unneeded `dirs` dep.
  * Drop `nix` dep for non-unix (i-e Windows).

Release 3.12.0

To go with zbus 3.12.0

Release 3.11.1

Fix server example in the docs and README.

Release 3.11.1

Just to go with zbus 3.11.1.

Release 3.12.0

To go with zvariant_derive 3.12.0.

First release

This crate will keep common (mostly macro) utilities for zvariant and zbus crates.

Release 3.12.0

Move macro utilities to a new `zvariant_utils` crate.

Release 3.11.0.

* ConnectionBuilder::build shouldn't assume executor ticking. This fixes a deadlock when internal
  executor is disabled and interface is added to the builder.
* Don't panic in proxy builder. Return an error instead.
* Some optimizations in handshake code.
* Error out on invalid UTF-8 in the cookie auth data.
* Add `Error:MissingParameter` variant.
* Implement `Clone` for `InterfaceRef`.
* Add `SignalStream::name` getter.
* `SignalStream`'s inner lifetime need to be tied to that of proxy's inner lifetime, not the proxy
  itself. In case of macros, we can declare it as '`static'.
* Some fixes to docs.
* Dependency changes:
  * Enable 'io' feature of futures-util. if `async-io` is enabled.
  * Add optional dep on `async-fs`.
  * update nix to 0.26.

Release 3.11.0

* Drop duplicated code in favor of new `zvariant_utils` crate.

zvariant 3.11.0

* Implement
  * `Display` for `{OwnedObjectPath, OwnedSignature}`.
  * `TryFrom<Cow<'a str>>` for `ObjectPath`.
  * `Type` for `std::time::SystemTime`.
  * `TryFrom<Cow<'a str>>` for `ObjectPath`.
* Some internal fixes.