New version of the gem returns 200 status code on delete with content
instead of 204 so we explicitly set status code to keep existing
behavior
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Signed-off-by: Rémy Coutable <remy@rymai.me>

- Typo in docs
- Newline between test/expectation in `api/issues_spec`
- Use `find_by` instead of `reference_by` in the structure defining awardables

- Instead of `merge_request_id` and `issue_id`
- The API also deals with `snippet_id`, which remains unchanged (since snippets
  don't have `iid`s
- Duplicate the original `AwardEmoji` API (and spec) for use with the V3
  API, since this is a breaking change.

Also incorporate feedback

prevent authored awardable thumbs votes

prevent authored awardable thumbs votes

* There where path where +1 was stored as +1 not as thumbsup
  that was causing problems such as showing thumbsup icon 2 time.
  I fixed this to always normalize and store +1 as tumbsup

Docs also added.

This only supports Issues and MergeRequests right now because of the
consistency of the routes those models provide.