updated keyboead.js docs...

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
added key def replace helper function updateHTMLKeyDoc(..) to keyboead.js...

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
fixed a bug in keyboard.js and made the introspection better...

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>