Added support for Linux multitouch protocol B (slots).
Added support for using the device's input properties as a hint
to determine the intended usage of a touch device.
Added support for the ABS_MT_DISTANCE axis.
Fixed a bug reporting the presence of the orientation axis.
Change-Id: Icf7b5a5a0f1a9cdf6ad2b35be8ea0c1a35815d48