Caps doesn't work properly

This is a different syndrome from https://github.com/bitovi/syn/issues/18

In this case, "caps" simply gets typed into the textbox.

I'm not entirely sure how we should handle this one. Capslock is a toggle, much like insert. That makes it fundamentally different than the traditional modifier keys like shift, ctrl, alt, meta

No files or tests are identified. Reproduce the issue by typing "caps" into a textbox, compare it with issue #18, and trace the keyboard-event handling for Caps Lock. Done means Caps Lock is treated as a toggle and does not insert the word "caps" into the textbox.

Written by the indexing model from the issue text.