Lists: Automatic creation of new items when hitting Enter

[wion]

iA Writer scenario:

This is the desired behaviour...

Once a list item is started, whether ordered or unordered, a hit of the Return key will start a new list item on the next line. No need to type the initial syntax again. To escape the list entirely, hit the Return twice. Easy and standard behaviour.

tWriter scenario:

In tWriter, there is no automatic continuation of list items; rather, each return requires another hit of the keys to start the list type item.

The situation for unordered lists is particularly annoying because the asterisk appears as a double wrapping pair at first and if you don't quickly start typing, the second mark remains and you have to backspace over it every time to remove it. Definitely not ideal.

The same desired behaviour is needed for nested list items, too; creating items at the same level until changing out of it.

Similar functionality being asked about in #12 and #13, though not exactly.