xextproto: Changes to 'master'

[Keith Packard]

 shm.h      |    2 +-
 shmproto.h |   42 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+), 1 deletion(-)

New commits:
commit be1483563532b5dcaef6847c206d0a6f772c8bd4
Author: Keith Packard <keithp at keithp.com>
Date:   Thu Jan 17 13:48:15 2013 -0800

    Adds MIT-SHM AttachFd and CreateSegment requests
    
    Passes shared memory segments by file descriptor, AttachFd passes from
    client to server, CreateSegment passes from server to client.
    
    Signed-off-by: Keith Packard <keithp at keithp.com>