#146 Adjust tests for transitions alias

[Voycawojka]

Updated functional tests with aliases

Motivation and Context

Issue: #146 Connected PR: https://github.com/Knotx/knotx-fragments/pull/150

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• [x] I have read the CONTRIBUTING document.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.

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I hereby agree to the terms of the Knot.x Contributor License Agreement.

[tomaszmichalak]

Please resolve some conflicts.

[tomaszmichalak]

and squash all commits to a single one.