Fixed forward declaration of PrototypeServiceFactory.
Fixed forward declaration of PrototypeServiceFactory.

NifTK/MITK,danielknorr/MITK,danielknorr/MITK,RabadanLab/MITKats,NifTK/MITK,iwegner/MITK,fmilano/mitk,RabadanLab/MITKats,danielknorr/MITK,MITK/MITK,lsanzdiaz/MITK-BiiG,RabadanLab/MITKats,lsanzdiaz/MITK-BiiG,fmilano/mitk,iwegner/MITK,iwegner/MITK,danielknorr/MITK,MITK/MITK,fmilano/mitk,NifTK/MITK,danielknorr/MITK,MITK/MITK,danielknorr/MITK,danielknorr/MITK,MITK/MITK,fmilano/mitk,iwegner/MITK,iwegner/MITK,RabadanLab/MITKats,lsanzdiaz/MITK-BiiG,lsanzdiaz/MITK-BiiG,lsanzdiaz/MITK-BiiG,MITK/MITK,fmilano/mitk,NifTK/MITK,NifTK/MITK,NifTK/MITK,fmilano/mitk,lsanzdiaz/MITK-BiiG,RabadanLab/MITKats,fmilano/mitk,RabadanLab/MITKats,lsanzdiaz/MITK-BiiG,iwegner/MITK,MITK/MITK,lsanzdiaz/MITK-BiiG