Merge pull request #56 from jsanda/update-changelog

update changelog for v0.3.3

fix JSON patch and add logging (#45)

I have changed the CassdcTemplateSpec to a pointer. I think that makes more
sense going forward for situations where we need to determine whether the
property has been set. I manually tested a backup/restore operation to make
sure that the change does not break anything.

fix crd version upgrade (#43)

upgrade cass-operator to 1.7.0 (#40)

* upgrade cass-operator

* update changelog

update changelog for v0.2.1 release

update changelog for v0.2.0 release

Merge pull request #22 from k8ssandra/operator_crds

Fix 1.16 incompatibility in CassandraDatacenter