*Implemented 'cellMouse*' functions from 'sys_io' module, which are part
of the libmouse library.
* Added corresponding entries in the 'Config > Settings' menu to change
the handler of the mouse. Supported handlers: Windows, Null.
* cellGifDec: Fixed some errors and added support for RGBA color.
(Remember: The mouse support is very experimental)
* Implemented 'cellKb*' functions from 'sys_io' module, which are part
of the libkb library.
* Added corresponding entries in the 'Config > Settings' menu to change
the handler of the keyboard. Supported handlers: Windows, Null.
INFO: This keyboard library is *very* experimental and I am aware of
some bugs. There will be improvements soon.
