Add Attribution to Changelog and move to Bugfix category

CHANGELOG.md

@@ -5,13 +5,13 @@ Unreleased ([changes](https://github.com/colszowka/simplecov/compare/v0.13.0...m
 
 * Officially support JRuby 9.1+ going forward (should also work with previous releases). See [#547](https://github.com/colszowka/simplecov/pull/547) (ping @PragTob when encountering issues)
 * Add Channel group to Rails profile, when `ActionCable` is loaded. See [#492](https://github.com/colszowka/simplecov/pull/492) (thanks @BenMorganIO)
-* Do not overwrite .last_run.json file when refuse_coverage_drop option is enabled and the coverage has dropped
 
 ## Bugfixes
 
 * Fix parallel_tests when a thread ends up running no tests. See [#533](https://github.com/colszowka/simplecov/pull/533) (thanks @cshaffer)
 * Skip the `:nocov:` comments along with the code that they skip. See [#551](https://github.com/colszowka/simplecov/pull/551) (thanks @ebiven)
 * Fix crash when Home environment variable is unset. See [#482](https://github.com/colszowka/simplecov/pull/482) (thanks @waldyr)
+* * Do not overwrite .last_run.json file when refuse_coverage_drop option is enabled and the coverage has dropped (lead to you being able to just rerun tests and everything was _fine_). See [#553](https://github.com/colszowka/simplecov/pull/553) (thanks @Miloshes)
 
 0.13.0 2017-01-25 ([changes](https://github.com/colszowka/simplecov/compare/v0.12.0...v0.13.0))
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