backspace through list item when at beginning of document

Bug: when you backspace thru first list item in a list, the selection goes to the front of the _new_ first list item (what used to be second list item). This means you can never get out of a list by backspacing unless you had started from the very end of the entire list. This is particularly annoying when the list is at the front of the document, since you cant click before the list either.

this patch includes the work for 159924 as well. sorry.

Comment on attachment 94912 [details] [diff] [review] patch to nsHTMLEditRules.cpp sr=kin@netscape.com Should this be an nsAutoString? + nsString tString(*aBlockType);

fix landed on trunk

backspacing through the first list element now goes outside the list. vrfy'd fixed on win2k and linux rh8.0 (2003.03.03) and mac 10.2.4 92003.02.28).