First beta version

• Several bug fixes.
• Extension now only takes care of connecting to Phiremock Server. The starting/stopping of Phiremock Server happens on a codeception extension.
• Completed differentiation between version 1 and 2 of the expectation configuration. The client uses version 2.
• Added support for new condition: formData. This condition specifies conditions to check against form fields.
• Still under test.