favicon uploader generating ci status favicons

Gemfile

Gemfile.lock

...s/images/ci_favicons/overlays/favicon_status_canceled.png

...ts/images/ci_favicons/overlays/favicon_status_created.png

...ets/images/ci_favicons/overlays/favicon_status_failed.png

...ets/images/ci_favicons/overlays/favicon_status_manual.png

.../images/ci_favicons/overlays/favicon_status_not_found.png

...ts/images/ci_favicons/overlays/favicon_status_pending.png

...ts/images/ci_favicons/overlays/favicon_status_running.png

...ts/images/ci_favicons/overlays/favicon_status_skipped.png

...ts/images/ci_favicons/overlays/favicon_status_success.png

...ts/images/ci_favicons/overlays/favicon_status_warning.png

app/uploaders/favicon_uploader.rb

spec/uploaders/favicon_uploader_spec.rb