Add some small fixes e.g. initialize all members of the JPetTaskIO
Add some small fixes e.g. initialize all members of the JPetTaskIO


Former-commit-id: c3b004ff34c39e7e84a105e4b548b21cb44cdbad
alexkernphysiker/j-pet-framework,JPETTomography/j-pet-framework,alexkernphysiker/j-pet-framework,wkrzemien/j-pet-framework,alexkernphysiker/j-pet-framework,wkrzemien/j-pet-framework,JPETTomography/j-pet-framework,wkrzemien/j-pet-framework,wkrzemien/j-pet-framework,wkrzemien/j-pet-framework,alexkernphysiker/j-pet-framework,JPETTomography/j-pet-framework,alexkernphysiker/j-pet-framework