Switch from evemu to libevdev

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Sync the initial slot values

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Init the right number of touches

No need to init with a fixed number

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>