[PATCH joystick 0/9] input abi fixes

[Peter Hutterer]

the usual set of cleanups that other drivers have seen, I just missed out on
joystick. Thanks to Trevor for reminding me.

The last commit has the actual meat, it supports ABI 12 and revamps the
hotplug system (the old one couldn't have worked with ABI 12). Also note
that like the other drivers, this requires a git X server now to build,
supporting multiple APIs for this is just too painful.

Cheers,
  Peter