[#LIB-127] update to slf4j-1.7.5
[#LIB-128] update to junit-3.11
[#LIB-129] DicomServiceFactory: log DicomServiceException in onDimseRQ() with INFO level
[#LIB-129] DicomServiceFactory: log DicomServiceException in onDimseRQ() with INFO level
[#LIB-129] DicomServiceFactory: log DicomServiceException in onDimseRQ() with INFO level