* Add the confirmation screen for bindings.
- Add support for asking confirmations before exiting the menu.
- Add support for cancelling saving of options.
- Add support for requesting focus when the parent allows to yield.
* Recenter most options' text.
* Change the background color of the selected options (else, there is
no way of knowing where is the cursor when both option text and
option value are icons).
* Change symbol names to their equivalent PSP icon use in wagic.
* Display pictures for buttons on PSP in the keybinding screen.
* Fix a bug where the New Binding... button would disappear when
creating a new binding.
* Fix a bug where the menu to choose the bound symbol was not modal.
* This finalizes the functionality for key bindings.
* Key bindings are saved in the user's configuration file and read
back the next time.
* Still got to do : display, instead of a number, an icon on PSP and a
string on windows (linux/mac already done).
* The key bindings now display (semi-)correctly.
- Here, "semi-" means the local keys display as a string under X and
a number everywhere else. The number is all but helpful and will
have to be replaced before it is usable, but at the moment, the
code is stable afaik.