Remove the 'running' booleans quit and optional

Remove the 'running' booleans quit and optional

Reason for this 'cleanup' is the strange "optional = false" lines at the
end of the "case md_item" and "case md_subitem". Then, it is nicer to
directly use the value of the switch to be the running variable and to use
this to determine whether an item is optional and whether we should quit.