* name field must match either k8s regex or grafana legacy uid regex. Adds tests.
* moves invalid test to being valid
* uses new US naming validation for kv store validation
* fix function name and update key regex
* fix comment
* use correct errs var
* updates kv key tests
* Add kvstore interface
* add owner
* go lint
* remove comment
* update comment
* remove GetOptions
* add sortorder unspecified
* nit
* nit
* nit
* move txn
* use io.reader
* use io.reader
* change again the default order + comments
* change again the default order + comments
* use readcloser for Save