Add date to release notes
== Change Log
[discrete]
-=== v4.10.0 (TBA)
+=== v4.10.0 (June 12, 2019)
* Expose `target` property for BuildImageTask - {uri-github}/pull/813[PR 813]
* Remove final from DockerBuildImage.labels property - {uri-github}/pull/823[PR 823]
