- Keybindings

- Maintain several concurrent completion lists,
  with easy switch back and forth. 

- Keybinding to switch between completion lists.

- File-based completion list.

- Better history control

- 8bit fix

- REPL

- Paren-matching settable despite .inputrc

- Hidden characters. (Password-style)

- Lightweight version based on alternate library with
  more permissive license.

- Smarter installation