Ensure we get all files installed when running autoreconf by passing
--force to overwrite previously-generated ones, which fixes running it
from tarballs.
Also revert Peter's local changes to pass arguments to configure, all of
which are the default now anyway, AIUI.
Free sprite struct if a spriteOwner is paired.
xfree86: Use PairDevices instead of passing booleans around when creating a
sprite.
Xext: Switch back to using LookupPointer/KeyboardDevice instead of
inputInfo.xyz.
