* add growl message to display warning messages from response headers
* update growl styling based on feedback from Eden
* Many updates
- Move functionality into it's own file
- Add unit tests
- Fix issue where YAML PUTs weren't included in check (bug in master)
- Fix issue with separating warnings (bug in master)
- previously this was done via `,`, however that appears in the messages themselves
- add configuration which allows this to be customised
- Add configuration which would allow us to disable or expand how growls are shown
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Co-authored-by: Alexandre Alves <aalves@Alexandres-MBP.lan>
Co-authored-by: Richard Cox <richard.cox@suse.com>