[PATCH wayland-protocols 0/4] tablet: switch to v2, add tablet pad

[Peter Hutterer]

The switch to v2 is needed primarily for the ABI break when we go from ints
to fixed for any rotational values. Patch 3/4 restricts the role a surface
can play when assigned as tool cursor, specifically we now only allow a
cursor surface to be assigned to one tool rather than shared across
multiple. This is slightly more work in the client but better defined and
managable in the compositor. See the patch for a detailed explanation.

The last patch adds the pad interface, mostly the same as last time but
rebased onto v2 and with a couple of small additions.

Cheers,
  Peter