5.0.0 Alpha 1 (23 March 2017)

This is the first alpha release of Curator 5. This should not be used for
production! There will be many more changes before 5.0.0 is released.

New Features

• Allow allocation action to unset a key/value pair by using an empty value.
  Requested in #906. (untergeek)
• Added support for the Rollover API. Requested in #898, and by countless
  others.
• Added warn_if_no_indices option for alias action in response to
  #883. Using this option will permit the alias add or remove to continue
  with a logged warning, even if the filters result in a NoIndices condition.
  Use with care.

Bug Fixes

• Check if an index is in an alias before attempting to delete it from the
  alias. Issue raised in #887. (untergeek)
• Fix allocation issues when using Elasticsearch 5.1+. Issue raised in #871
  (untergeek)

Documentation

• Add missing repository arg to auto-gen API docs. Reported in #888
  (untergeek)