- [X] When sync from trello, merge non trello org tags with trello tags (to avoid loss for the user)
Refactor - avoid duplicated tags when tag already present locally and
merging from trello
Refactor - remove useless parens
Refactor - formatting
- [X] When sync to trello, filter out org tags that will not be
  understood by trello (to avoid 400 request from trello)
Nothing to do as trello seems to ignore unknown tags
Refactor - Remove duplicated code and use the same merging policy
between org-trello/sync-entity and org-trello/sync-full-entity
interactive commands
- [X] Add the quick start in the main package description
- [X] Version
- [X] Release notes
* DONE 0.4.1 [100%]