rename JumpList::List -> List;
Site::List#add() returns self isntead of Exe;
Site::List#set() includes lower group setting;
rename libjumplist -> liblist;
Mcr::List becomes child of List;
Mcr::List/ use @cfg[:jump_groups] for compatiblility;
Mcr::Man/ add jump menu for switch macro;
Mcr::List/ add number for mcr list in help;