Continuous popups. Other minor fixes & kludges.
Type fixes.
Fix for beta 4. (Forgot to remove explicit CG retain.)
Fix for beta 4. (No more optionals in string formatting.)

Oddly, I’m no longer able to set breakpoints or
receive errors from the actual keyboard process
in beta 4. My plugin was simply crashing with
"process blah.blah.blah interrupted". Had to figure
out the problem manually.