Add valgrind target to Makefile
Add valgrind target to Makefile

wzwright/GroupDesignBattleship,GroupDesignBattleship/debian,wzwright/GroupDesignBattleship,GroupDesignBattleship/debian,GroupDesignBattleship/debian,wzwright/GroupDesignBattleship,wzwright/GroupDesignBattleship,GroupDesignBattleship/debian