Fixed some little menu bugs.
 On branch master
 Changes to be committed:
	modified:   bin/Debug/schoolMarkLogger
	modified:   main.cpp
	modified:   menu.hpp
Added school year creation.
 On branch master
 Changes to be committed:
	modified:   bin/Debug/schoolMarkLogger
	modified:   main.cpp
	modified:   menu.hpp
	modified:   quartal.cpp
	modified:   quartal.hpp
	new file:   quit_exception.hpp
	modified:   school_year.cpp
	modified:   school_year.hpp
	modified:   user.cpp
	modified:   user.hpp