have word spelling not croak when it's empty.
adjustments to online spellcheck
remove instances of misspelled word from side panel when they're no l…
Upgraded the spell checking system.
Added some new hotkeys to adjust playback tempo.
Previous revision didn't actually run.
use Path::Tiny instead of File::Slurp.
forget about the round() symbol from the last change.
fixed a warning about a subroutine "round" redefined