merge commit
merge commit

wkrzemien/j-pet-framework-examples,wkrzemien/j-pet-framework-examples,JPETTomography/j-pet-framework-examples,JPETTomography/j-pet-framework-examples,JPETTomography/j-pet-framework-examples,JPETTomography/j-pet-framework-examples,wkrzemien/j-pet-framework-examples