Update the "msort" function in Lemon so that it works with lists of any length, and also so that the sort is stable. This patch was motivated by [forum:/forumpost/63750d717c9ed961|forum post 63750d717c] but was independently developed, then tested by temporarily setting LISTSIZE to 2. (tags: trunk)

Update the "msort" function in Lemon so that it works with lists of any length, and also so that the sort is stable. This patch was motivated by [forum:/forumpost/63750d717c9ed961|forum post 63750d717c] but was independently developed, then tested by temporarily setting LISTSIZE to 2. (tags: trunk)