Added name of host to log message header.

catalogue/CatalogueFactoryTest.cpp

catalogue/CatalogueTest.cpp

catalogue/CreateAdminHostCmd.cpp

catalogue/CreateAdminUserCmd.cpp

catalogue/InMemoryCatalogueTest.cpp

common/log/DummyLogger.cpp

common/log/DummyLogger.hpp

common/log/FileLogger.cpp

common/log/FileLogger.hpp

common/log/FileLoggerTest.cpp

common/log/LogContextTest.cpp

common/log/Logger.cpp

common/log/Logger.hpp

common/log/StdoutLogger.cpp

common/log/StdoutLogger.hpp

common/log/StringLogger.cpp

common/log/StringLogger.hpp

common/log/StringLoggerTest.cpp

common/log/SyslogLogger.cpp

common/log/SyslogLogger.hpp