Tag version 0.5.1

* Run container as non-root user

Tag version 0.5.0

* Add dual stack support.
* Add support for handling legacy unicast queries.

refactor: use network/v1 api for ingress

feat: add option to publish entries without namespace

Add an option to publish service entries without a namespace by
specifying `-without-namespace=true`.

This commit also changes the behavior to not append namespace for
hostnames specified on ingress resources. The hostnames specified on
the resource will be advertised as-is.

Resolves #1

Signed-off-by: Renan Rodrigues <renanqts@gmail.com>

Co-authored-by: Blake Covarrubias <blake@covarrubi.as>

Fix records not being removed on deletion

Resolve an issue where modifications to the Class field were taking
place on the original record. This affected the ability to later
delete that record due to entries.contains() returning false because
the record being compared no longer matched the stored record due to
the previous modification of the class field. This commit modifies the
code to make deep copies of response records so that modifications to
the Class field do not take place on the original record.

This commit also fixes the removal of hostnames with one record entry.

Initial commit