vim-mode delimits paragraphs differently to Vim

Before `dap` is typed:

```
# XXX fix
add_atom_command: (binding, fn) ->
    binding = 'gpd:' + binding
    █@subscriptions.add atom.commands.add 'atom-workspace', binding: -> fn.call(@)
```

Expected result after `dap` is typed:

```
█
```

Actual result after `dap` is typed:

```
# XXX fix
█
```

Not sure how important this is, just thought I'd report it anyway.
