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: c056bd5aea54d57c937b7df3b2281e4a53b00395
JPETTomography/j-pet-framework,wkrzemien/j-pet-framework,alexkernphysiker/j-pet-framework,wkrzemien/j-pet-framework,wkrzemien/j-pet-framework,alexkernphysiker/j-pet-framework,alexkernphysiker/j-pet-framework,wkrzemien/j-pet-framework,alexkernphysiker/j-pet-framework,JPETTomography/j-pet-framework,alexkernphysiker/j-pet-framework,wkrzemien/j-pet-framework,JPETTomography/j-pet-framework