fixed missing site packages when using the build in runtime
fixed missing site packages when using the build in runtime

MITK/MITK,fmilano/mitk,fmilano/mitk,RabadanLab/MITKats,MITK/MITK,NifTK/MITK,RabadanLab/MITKats,RabadanLab/MITKats,MITK/MITK,fmilano/mitk,iwegner/MITK,MITK/MITK,NifTK/MITK,MITK/MITK,iwegner/MITK,NifTK/MITK,RabadanLab/MITKats,iwegner/MITK,iwegner/MITK,MITK/MITK,fmilano/mitk,RabadanLab/MITKats,iwegner/MITK,fmilano/mitk,iwegner/MITK,NifTK/MITK,NifTK/MITK,NifTK/MITK,fmilano/mitk,fmilano/mitk,RabadanLab/MITKats