[RFC PATCH inputproto 0/3] Push 2.1 work into a branch

[Peter Hutterer]

Chase pointed out that we don't have _any_ of the XI 2.1 stuff in the
official repos yet. That makes testing harder for everyone and incremental
review as well. This patchset is a simple one, just adding a few bumps and a
warning to inputproto. I'm planning to push this to a inputproto-2.1-devel
branch, so that at least we have one central repository for all the work.
We can then release snapshots from that branch if we need them.

Note that this is _not_ on master, so normal users won't see the
warning/error, only those building from that branch.

Any comments or suggestions?

Similar branches will have to be added to libXi and xserver.

Cheers,
  Peter