Closes #3178

Closes #2874

Issue #2621

Bumping them for every release just adds too much git
noise and history blowup.

Since it's what you want most of the time, and easy to forget.

Issue #778

Just a small nit. Without the list check, `getStateAfter`
looks like it will always be true.

It had been depending on the list token being highlighted
with the class 'string', which it no longer is in the markdown
mode.

Updated to check the `list` property of the line's state.

Closes #1133