Remove unnecessary message output

Bump to 0.1.7: Remove unnecessary message output when there is no warning and error by @manuelgrabowski

Add an option, fail_on_error to allow fail on CI

Fail the pipeline if CodeSniffer reports any errors (you also have to run Danger with the --fail-on-errors flag set to true):

php_codesniffer.fail_on_error = true

contributed by @manuelgrabowski

Version 0.1.4

🎉 Bump to 0.1.4: add usage in README.md

Version 0.1.2

Bump to 0.1.2 version: fix the  option space