added user interface and passed userId as a parameter to the content mapper
added more security stuff for test environment
removed interface in test
updated testuser
Merge branch 'bugfix/user-dependency' of git://github.com/sulu-cmf/sulu into bugfix/user-dependency
adjusted interface in ContentMapperTest
redefined interface
Merge pull request #11 from sulu-cmf/bugfix/user-dependency

Removed User dependency