valgrind API: change_tool_parameter()
valgrind API: change_memcheck_parameter()
valgrind API: differentiating (general/tool)_yes_no()
valgrind API: tool_yes_no()
valgrind API: fixed tool_yes_no()
valgrind API: made undef_vars immutable for the moment
valgrind API: fixed ridiculous memleaks
valgrind API: improved descriptions, exec files
valgrind API: valgrind_valid_parameters()
valgrind API: basic exec with parameters
exec API: fixed get_program_path extra linefeed (weird tho)
valgrind API: added target to create params macros
valgrind API: fixed typo in memcheck default parameters
exec API: fixed error typo
valgrind API: __execute_and_get_fd()
exec API: fixed error check
valgrind API: get and treat output