Prepare for v0.12.0

[orta]

@deecewan - I switched requestedReviewers to requested_reviewers to make it consistent with the rest of the DSL. We'd either have to switch everything to camelCase or leave it as it comes from GitHub as snake_case.

[DangerCI]

	Warnings
⚠️	Changes were made to package.json, but not to yarn.lock - Perhaps you need to run `yarn install`?

Generated by 🚫 dangerJS

[codecov-io]

Codecov Report

Merging #167 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff          @@
##           master   #167   +/-   ##
=====================================
  Coverage       0%     0%           
=====================================
  Files           3      3           
  Lines          93     93           
  Branches       17     17           
=====================================
  Misses         93     93

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