feature [#479] Upgrading all functional tests to use minimal configuration

- All functional applications now live in `/*Bundle/Tests/app`
- All functional tests extend SuluTestCase
- All functional tests include
  "SuluTestBundle/Resources/dist/config.php"
  - Which dynamically loads different configurations based on the
    environment variables SULU_PHPCR and SULU_ORM
- Removed repeated configuration files
- All test kernels now extend SuluTestKernel which includes all
  the bundles required for a standard Sulu.