fixes TYNAMO-235 - Make it super easy to add CORS support.
fixes TYNAMO-231 - Integrate Swagger
 - adding swagger as an optional dependency
 - adding a sample SwaggerModule with the necessary configuration for running Swagger on top of tapestry-resteasy
 - using the new SwaggerModule as part of the tests
 - ignoring IntelliJ IDEA project files
 - ignoring the 'target' output folder