Trashcan icon in arrowpad

• Chuck Shotton noticed there's no way to delete stuff in the arrowpad interface. Now there is.

• But be careful cause you need a keyboard to undo. Still need to figure that out.

• Screen shot of the new feature.

An internal "virtual" keyboard

• This change has no user interface at this time, but if it works it will get one.

• The keyboard in Fargo is now virtualized. This means that there's a layer between the physical keyboard presented by JavaScript and the one used by the outliner. So we should be able to make this something the user can modify.

• If it works here, I'll also add it to the Concord open source release.

• Coders who want to see what the key definitions are, have a look in this JavaScript file.

• Also, not all the mappings are done yet, there are keystrokes that are caught at a higher level, in the Fargo app, not in Concord. They have to be accounted for as well.