#15 Link menu labels to label editor

[PaulE]

Based on request 891372
(https://sourceforge.net/tracker/index.php?
func=detail&aid=891372&group_id=39497&atid=425398)

If a menu label reprented by a single token, (ie <label>
[zz.yy]</label> is, but <label>[zz.xx] of [xx.yy]
records</label> isn't) then add in the link to the label
editor, assuming the current user as label editor security