Some bug fixes.

include/sot-core/debug.h

include/sot-core/exception-abstract.h

include/sot-core/exception-dynamic.h

include/sot-core/exception-factory.h

include/sot-core/exception-feature.h

include/sot-core/exception-signal.h

include/sot-core/exception-task.h

include/sot-core/exception-tools.h

include/sot-core/exception-traces.h

src/CMakeLists.txt

src/debug/debug.cpp

src/exception/exception-abstract.cpp

src/exception/exception-dynamic.cpp

src/exception/exception-factory.cpp

src/exception/exception-feature.cpp

src/exception/exception-signal.cpp

src/exception/exception-task.cpp

src/exception/exception-tools.cpp

src/exception/exception-traces.cpp

src/factory/command/import.cpp