Reworked response viewlet:

 - complete new look.
 - introduce ResponseDescription.
 - moved viewlet to viewlets directory
Change response init.
Add action menu viewlet.
Fixed Bug in transitioncontroller.

 - wrong name of task.method and add missing import.
Response progress: show entry for the task creation.
Response_description: Update some css_classes.
Added comment for refactoring which should be done in the future.
Response description: added missing descriptions.
Added german translations for the respone descriptions.

French translations are missing and should be updated later.