Made ace editor's blur and focus events fire

[ambischof]

The blur and focus events were not triggering properly so added the proper bindings.

I was trying to use a custom validator on an editor field that was a child of a bigger form but the function was never being called. On closer inspection, I found that it was because the blur and focus events were not being propagated up to the alpaca field. I copied these from a different editor and found that they would trigger validation as expected.

There were other events but I didn't add them because they didn't seem supported (like click and keyup/down) or caused other issues (like change)