Update to new linting functionality

[juwara0]

This project uses semver, please check the scope of this pr:

• [X] #patch# - backwards-compatible bug fix
• [ ] #minor# - adding functionality in a backwards-compatible manner
• [ ] #major# - incompatible API change

Closes: https://github.com/ciena-frost/ember-frost-navigation/issues/194

CHANGELOG

• Updated Travis to only publish when git tags are added in preparation for non-version bump pull requests.
• Updated linting to use linting tools from ember-test-utils.

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This change is 

[coveralls]

Changes Unknown when pulling 80cc1e2b6c983355598f031ca1e10d005603522f on juwara0:updateLint into on ciena-frost:master.

[juwara0]

👍