Add functional test case :)
Fix functional tests on travis
Do not run functional tests on 5.3.18 and below
Roll your eyes for 2h debugging
Try to fix the exclusion of functional tests for 5.3.3

See https://github.com/sebastianbergmann/phpunit/issues/928 for more information
Merge pull request #1 from nickvergessen/feature/functional-tests

Feature/functional tests