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- Fix an issue where a broken command's traceback would not be emitted - https://github.com/click-contrib/click-plugins/issues/25
- Bump required click version to `click>=4` - https://github.com/click-contrib/click-plugins/pull/28
- Runs Travis tests for the latest release of click versions 4 -> 7 - https://github.com/click-contrib/click-plugins/pull/28