Added -lconfig++ to the main Makefile to avoid undefined symbols in the shared library.
Added -lconfig++ to the main Makefile to avoid undefined symbols in the shared library.


Former-commit-id: 4e266156bae11bf9e124790c78bc4fd66208c08b
wkrzemien/j-pet-framework,wkrzemien/j-pet-framework,alexkernphysiker/j-pet-framework,JPETTomography/j-pet-framework,wkrzemien/j-pet-framework,wkrzemien/j-pet-framework,wkrzemien/j-pet-framework,JPETTomography/j-pet-framework,alexkernphysiker/j-pet-framework,alexkernphysiker/j-pet-framework,alexkernphysiker/j-pet-framework,alexkernphysiker/j-pet-framework,JPETTomography/j-pet-framework