Remove uneeded Zimple requirement

[frastel]

As far as i have seen the requirement jtreminio/zimple is never used in the project, so it could be removed. Is this correct or did I miss something?

[jtreminio]

Zimple will be used for dependency management to make my unit tests simpler. Right now I am unable to properly unit test controllers because of hard dependencies introduced by the new keyword - Zimple will help with this.

[frastel]

Mmmh, after I have finished the nginx integration I could move the logic from the createAction into an own service and add an according test for this service. This way you would see that you do not need a controller test (functional test) for everything.