{delete: 2} instead of {delete: 1}

[benbro]

To reproduce open examples/index.html.
Write "a".
Delete the "a" character.
In the console you'll see {delete: 2}.

Tested version 0.18.1 with Firefox 32.0.3

[benbro]

Another issue, probably related.
When you start with an empty doc, write "a" and delete with backspace, you can't write anymore.
You have to focus the editor again and only then able to write.

This only happens in examples/index.html but not in examples/advanced.html