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The latest update on openwisp-utils introduced a common CI script to run all the CI tests with one command and it's time to update this repository to the common openwisp-utils-qa-checks.

For this task, you need to:

1. Add/Update the openwisp-utils's latest version in the test requirements
2. Change the .travis.yml file to run the new common checks (except the makemigrations --dry-run, which is not included in openwisp-utils-qa-checks), see here for example: https://github.com/openwisp/openwisp-utils/blob/master/.travis.yml
3. Submit the pull request.