Feature Request: Add spell checking and correction in the input box

[SamStrongTalks]

I think the title says it all, I can get screenshots of how this works in some other applications if desired.

[dmd]

I think this not a good idea unless you can simply use the OS's text input method.

[RSully]

Yeah I think a lot of the input issues (this one, #211, #312, #525, maybe others?) would be solved if we could use native input fields. That would be a huge win IMO