or mathematica's "*)") - at the beginning of line are no longer are
interpreted as level 1 topics in those modes. (Yay!)
+*** Many or most commonly occuring "accidental" topics are disqualified.
+Text that looks like low-depth topics is no longer mistaken for them unless
+the depth of the first subsequent topic-seeming text greater depth is only
+one level deeper.
+
+For example, pasting some text with a bunch of leading asterisks into a
+topic that's followed by a level 3 or deeper topic will not cause the
+pasted text to be mistaken for outline structure. Likewise for any text
+added that looks like any level 2 or 3 topics.
+
+This settles an old issue where typed or pasted text needed to be carefully
+reviewed, and sometimes doctored, to avoid accidentally disrupting the
+outline structure. Now that should be generally unnecessary, as the most
+prone-to-occur accidents are disqualified.
+
*** Many substantial fixes and refinements, including:
- repaired regexp-quoting of custom header prefixes, so any literals