Allow query parameters in request

- This PR enables query parameters to be used in the request
- It also tidies up the unit test
Merge pull request #197 from sulu-cmf/bugfix/allow-query-parameters-

Allow query parameters in request
Merge pull request #201 from sulu-cmf/hotfix/in-external-link

[HOTFIX] Stabilize in and external links
Update composer.json
Merge branch 'develop' of git://github.com/sulu-cmf/sulu into hotfix/template-title

Conflicts:
	composer.json