Merge branch 'gitignore-.rspec' into 'master'

Allow developers to have custom rspec output settings

See merge request !12553

.gitignore

@@ -60,3 +60,4 @@ eslint-report.html
 /.gitlab_workhorse_secret
 /webpack-report/
 /locale/**/LC_MESSAGES
+/.rspec

.rspec

---color
---format Fuubar