mKEYB 0.49

- support for 83/84 keys standard keyboards

- autodetect of keyboard type (standard or enhanced)

- standard keyboard layout for italian

- if no standard layout is available, the driver patches the enhanced
layout to use Ctrl+Alt instead of AltGr (not present 83 keys keyboards).

- improved uninstall routine

- add support for int 2f 0xAD80 function (keyb install check)

- executable compressed with PKLITE