[PATCH 0/8] New raw events behaviour for XI 2.1

[Peter Hutterer]

Ok, next go at it. First seven patches are just cleanups with no functional
changes. Rearrangements to prepare for patch 8/8. The approach is different
now, using DeliverRawEvents to pre-filter so that by the time we hit
TryClientEvents we can deliver what we have.

This addresses the previously broken case of the window not having selected
for RawEvents but the grab having the mask set. 

Cheers,
  Peter